diff --git a/packages/core/src/extensions/Blocks/nodes/BlockContainer.ts b/packages/core/src/extensions/Blocks/nodes/BlockContainer.ts
index 3e4b0ffb29..3120ba8253 100644
--- a/packages/core/src/extensions/Blocks/nodes/BlockContainer.ts
+++ b/packages/core/src/extensions/Blocks/nodes/BlockContainer.ts
@@ -281,10 +281,19 @@ export const BlockContainer = Node.create<IBlock>({
           }
 
           // Deletes next block and adds its text content to the nearest previous block.
-          // TODO: Use slices.
+
           if (dispatch) {
-            state.tr.deleteRange(startPos, startPos + contentNode.nodeSize);
-            state.tr.insertText(contentNode.textContent, prevBlockEndPos - 1);
+            dispatch(
+              state.tr
+                .deleteRange(startPos, startPos + contentNode.nodeSize)
+                .replace(
+                  prevBlockEndPos - 1,
+                  startPos,
+                  new Slice(contentNode.content, 0, 0)
+                )
+                .scrollIntoView()
+            );
+
             state.tr.setSelection(
               new TextSelection(state.doc.resolve(prevBlockEndPos - 1))
             );
diff --git a/tests/end-to-end/keyboardhandlers/keyboardhandlers.test.ts b/tests/end-to-end/keyboardhandlers/keyboardhandlers.test.ts
index 13a9c086db..0a03efd59e 100644
--- a/tests/end-to-end/keyboardhandlers/keyboardhandlers.test.ts
+++ b/tests/end-to-end/keyboardhandlers/keyboardhandlers.test.ts
@@ -6,7 +6,7 @@ import {
   H_TWO_BLOCK_SELECTOR,
 } from "../../utils/const";
 import { compareDocToSnapshot, focusOnEditor } from "../../utils/editor";
-import { insertHeading } from "../../utils/copypaste";
+import { insertHeading, insertParagraph } from "../../utils/copypaste";
 
 test.describe.configure({ mode: "serial" });
 
@@ -72,4 +72,58 @@ test.describe("Check Keyboard Handlers' Behaviour", () => {
 
     await compareDocToSnapshot(page, "enterPreservesNestedBlocks.json");
   });
+  test("Check Backspace at the start of a block", async ({ page }) => {
+    await focusOnEditor(page);
+    await insertHeading(page, 1);
+
+    await page.keyboard.press("ArrowUp");
+    await page.keyboard.press("Control+ArrowLeft");
+    await page.keyboard.press("Backspace");
+
+    await compareDocToSnapshot(page, "backspaceStartOfBlock.json");
+  });
+  test("Check Backspace preserves marks", async ({ page }) => {
+    await focusOnEditor(page);
+    await insertParagraph(page);
+    await insertParagraph(page);
+
+    await page.keyboard.press("ArrowUp");
+    await page.keyboard.press("Control+ArrowLeft");
+
+    for (let i = 0; i < 2; i++) {
+      await page.keyboard.press("ArrowRight");
+    }
+
+    for (let i = 0; i < 5; i++) {
+      await page.keyboard.press("Shift+ArrowRight");
+    }
+
+    await page.locator(ITALIC_BUTTON_SELECTOR).click();
+    await page.waitForTimeout(500);
+
+    await page.keyboard.press("ArrowLeft");
+    await page.keyboard.press("Control+ArrowLeft");
+    await page.keyboard.press("Backspace");
+
+    await compareDocToSnapshot(page, "backspacePreservesMarks.json");
+  });
+  test("Check Backspace preserves nested blocks", async ({ page }) => {
+    await focusOnEditor(page);
+    await insertParagraph(page);
+    await insertParagraph(page);
+    await page.keyboard.press("Tab");
+    await insertParagraph(page);
+    await page.keyboard.press("Tab");
+    await page.keyboard.press("Tab");
+    await insertParagraph(page);
+
+    for (let i = 0; i < 3; i++) {
+      await page.keyboard.press("ArrowUp");
+    }
+
+    await page.keyboard.press("Control+ArrowLeft");
+    await page.keyboard.press("Backspace");
+
+    await compareDocToSnapshot(page, "backspacePreservesNestedBlocks.json");
+  });
 });
diff --git a/tests/end-to-end/keyboardhandlers/keyboardhandlers.test.ts-snapshots/backspacePreservesMarks-json-chromium-linux.json b/tests/end-to-end/keyboardhandlers/keyboardhandlers.test.ts-snapshots/backspacePreservesMarks-json-chromium-linux.json
new file mode 100644
index 0000000000..242f82807d
--- /dev/null
+++ b/tests/end-to-end/keyboardhandlers/keyboardhandlers.test.ts-snapshots/backspacePreservesMarks-json-chromium-linux.json
@@ -0,0 +1,61 @@
+{
+  "type": "doc",
+  "content": [
+    {
+      "type": "blockGroup",
+      "content": [
+        {
+          "type": "blockContainer",
+          "attrs": {
+            "id": "0",
+            "textColor": "default",
+            "backgroundColor": "default"
+          },
+          "content": [
+            {
+              "type": "paragraph",
+              "attrs": {
+                "textAlignment": "left"
+              },
+              "content": [
+                {
+                  "type": "text",
+                  "text": "ParagraphPa"
+                },
+                {
+                  "type": "text",
+                  "marks": [
+                    {
+                      "type": "italic"
+                    }
+                  ],
+                  "text": "ragra"
+                },
+                {
+                  "type": "text",
+                  "text": "ph"
+                }
+              ]
+            }
+          ]
+        },
+        {
+          "type": "blockContainer",
+          "attrs": {
+            "id": "2",
+            "textColor": "default",
+            "backgroundColor": "default"
+          },
+          "content": [
+            {
+              "type": "paragraph",
+              "attrs": {
+                "textAlignment": "left"
+              }
+            }
+          ]
+        }
+      ]
+    }
+  ]
+}
\ No newline at end of file
diff --git a/tests/end-to-end/keyboardhandlers/keyboardhandlers.test.ts-snapshots/backspacePreservesMarks-json-firefox-linux.json b/tests/end-to-end/keyboardhandlers/keyboardhandlers.test.ts-snapshots/backspacePreservesMarks-json-firefox-linux.json
new file mode 100644
index 0000000000..242f82807d
--- /dev/null
+++ b/tests/end-to-end/keyboardhandlers/keyboardhandlers.test.ts-snapshots/backspacePreservesMarks-json-firefox-linux.json
@@ -0,0 +1,61 @@
+{
+  "type": "doc",
+  "content": [
+    {
+      "type": "blockGroup",
+      "content": [
+        {
+          "type": "blockContainer",
+          "attrs": {
+            "id": "0",
+            "textColor": "default",
+            "backgroundColor": "default"
+          },
+          "content": [
+            {
+              "type": "paragraph",
+              "attrs": {
+                "textAlignment": "left"
+              },
+              "content": [
+                {
+                  "type": "text",
+                  "text": "ParagraphPa"
+                },
+                {
+                  "type": "text",
+                  "marks": [
+                    {
+                      "type": "italic"
+                    }
+                  ],
+                  "text": "ragra"
+                },
+                {
+                  "type": "text",
+                  "text": "ph"
+                }
+              ]
+            }
+          ]
+        },
+        {
+          "type": "blockContainer",
+          "attrs": {
+            "id": "2",
+            "textColor": "default",
+            "backgroundColor": "default"
+          },
+          "content": [
+            {
+              "type": "paragraph",
+              "attrs": {
+                "textAlignment": "left"
+              }
+            }
+          ]
+        }
+      ]
+    }
+  ]
+}
\ No newline at end of file
diff --git a/tests/end-to-end/keyboardhandlers/keyboardhandlers.test.ts-snapshots/backspacePreservesMarks-json-webkit-linux.json b/tests/end-to-end/keyboardhandlers/keyboardhandlers.test.ts-snapshots/backspacePreservesMarks-json-webkit-linux.json
new file mode 100644
index 0000000000..242f82807d
--- /dev/null
+++ b/tests/end-to-end/keyboardhandlers/keyboardhandlers.test.ts-snapshots/backspacePreservesMarks-json-webkit-linux.json
@@ -0,0 +1,61 @@
+{
+  "type": "doc",
+  "content": [
+    {
+      "type": "blockGroup",
+      "content": [
+        {
+          "type": "blockContainer",
+          "attrs": {
+            "id": "0",
+            "textColor": "default",
+            "backgroundColor": "default"
+          },
+          "content": [
+            {
+              "type": "paragraph",
+              "attrs": {
+                "textAlignment": "left"
+              },
+              "content": [
+                {
+                  "type": "text",
+                  "text": "ParagraphPa"
+                },
+                {
+                  "type": "text",
+                  "marks": [
+                    {
+                      "type": "italic"
+                    }
+                  ],
+                  "text": "ragra"
+                },
+                {
+                  "type": "text",
+                  "text": "ph"
+                }
+              ]
+            }
+          ]
+        },
+        {
+          "type": "blockContainer",
+          "attrs": {
+            "id": "2",
+            "textColor": "default",
+            "backgroundColor": "default"
+          },
+          "content": [
+            {
+              "type": "paragraph",
+              "attrs": {
+                "textAlignment": "left"
+              }
+            }
+          ]
+        }
+      ]
+    }
+  ]
+}
\ No newline at end of file
diff --git a/tests/end-to-end/keyboardhandlers/keyboardhandlers.test.ts-snapshots/backspacePreservesNestedBlocks-json-chromium-linux.json b/tests/end-to-end/keyboardhandlers/keyboardhandlers.test.ts-snapshots/backspacePreservesNestedBlocks-json-chromium-linux.json
new file mode 100644
index 0000000000..98f36be4ea
--- /dev/null
+++ b/tests/end-to-end/keyboardhandlers/keyboardhandlers.test.ts-snapshots/backspacePreservesNestedBlocks-json-chromium-linux.json
@@ -0,0 +1,97 @@
+{
+  "type": "doc",
+  "content": [
+    {
+      "type": "blockGroup",
+      "content": [
+        {
+          "type": "blockContainer",
+          "attrs": {
+            "id": "0",
+            "textColor": "default",
+            "backgroundColor": "default"
+          },
+          "content": [
+            {
+              "type": "paragraph",
+              "attrs": {
+                "textAlignment": "left"
+              },
+              "content": [
+                {
+                  "type": "text",
+                  "text": "ParagraphParagraph"
+                }
+              ]
+            }
+          ]
+        },
+        {
+          "type": "blockContainer",
+          "attrs": {
+            "id": "2",
+            "textColor": "default",
+            "backgroundColor": "default"
+          },
+          "content": [
+            {
+              "type": "paragraph",
+              "attrs": {
+                "textAlignment": "left"
+              },
+              "content": [
+                {
+                  "type": "text",
+                  "text": "Paragraph"
+                }
+              ]
+            },
+            {
+              "type": "blockGroup",
+              "content": [
+                {
+                  "type": "blockContainer",
+                  "attrs": {
+                    "id": "3",
+                    "textColor": "default",
+                    "backgroundColor": "default"
+                  },
+                  "content": [
+                    {
+                      "type": "paragraph",
+                      "attrs": {
+                        "textAlignment": "left"
+                      },
+                      "content": [
+                        {
+                          "type": "text",
+                          "text": "Paragraph"
+                        }
+                      ]
+                    }
+                  ]
+                }
+              ]
+            }
+          ]
+        },
+        {
+          "type": "blockContainer",
+          "attrs": {
+            "id": "4",
+            "textColor": "default",
+            "backgroundColor": "default"
+          },
+          "content": [
+            {
+              "type": "paragraph",
+              "attrs": {
+                "textAlignment": "left"
+              }
+            }
+          ]
+        }
+      ]
+    }
+  ]
+}
\ No newline at end of file
diff --git a/tests/end-to-end/keyboardhandlers/keyboardhandlers.test.ts-snapshots/backspacePreservesNestedBlocks-json-firefox-linux.json b/tests/end-to-end/keyboardhandlers/keyboardhandlers.test.ts-snapshots/backspacePreservesNestedBlocks-json-firefox-linux.json
new file mode 100644
index 0000000000..98f36be4ea
--- /dev/null
+++ b/tests/end-to-end/keyboardhandlers/keyboardhandlers.test.ts-snapshots/backspacePreservesNestedBlocks-json-firefox-linux.json
@@ -0,0 +1,97 @@
+{
+  "type": "doc",
+  "content": [
+    {
+      "type": "blockGroup",
+      "content": [
+        {
+          "type": "blockContainer",
+          "attrs": {
+            "id": "0",
+            "textColor": "default",
+            "backgroundColor": "default"
+          },
+          "content": [
+            {
+              "type": "paragraph",
+              "attrs": {
+                "textAlignment": "left"
+              },
+              "content": [
+                {
+                  "type": "text",
+                  "text": "ParagraphParagraph"
+                }
+              ]
+            }
+          ]
+        },
+        {
+          "type": "blockContainer",
+          "attrs": {
+            "id": "2",
+            "textColor": "default",
+            "backgroundColor": "default"
+          },
+          "content": [
+            {
+              "type": "paragraph",
+              "attrs": {
+                "textAlignment": "left"
+              },
+              "content": [
+                {
+                  "type": "text",
+                  "text": "Paragraph"
+                }
+              ]
+            },
+            {
+              "type": "blockGroup",
+              "content": [
+                {
+                  "type": "blockContainer",
+                  "attrs": {
+                    "id": "3",
+                    "textColor": "default",
+                    "backgroundColor": "default"
+                  },
+                  "content": [
+                    {
+                      "type": "paragraph",
+                      "attrs": {
+                        "textAlignment": "left"
+                      },
+                      "content": [
+                        {
+                          "type": "text",
+                          "text": "Paragraph"
+                        }
+                      ]
+                    }
+                  ]
+                }
+              ]
+            }
+          ]
+        },
+        {
+          "type": "blockContainer",
+          "attrs": {
+            "id": "4",
+            "textColor": "default",
+            "backgroundColor": "default"
+          },
+          "content": [
+            {
+              "type": "paragraph",
+              "attrs": {
+                "textAlignment": "left"
+              }
+            }
+          ]
+        }
+      ]
+    }
+  ]
+}
\ No newline at end of file
diff --git a/tests/end-to-end/keyboardhandlers/keyboardhandlers.test.ts-snapshots/backspacePreservesNestedBlocks-json-webkit-linux.json b/tests/end-to-end/keyboardhandlers/keyboardhandlers.test.ts-snapshots/backspacePreservesNestedBlocks-json-webkit-linux.json
new file mode 100644
index 0000000000..98f36be4ea
--- /dev/null
+++ b/tests/end-to-end/keyboardhandlers/keyboardhandlers.test.ts-snapshots/backspacePreservesNestedBlocks-json-webkit-linux.json
@@ -0,0 +1,97 @@
+{
+  "type": "doc",
+  "content": [
+    {
+      "type": "blockGroup",
+      "content": [
+        {
+          "type": "blockContainer",
+          "attrs": {
+            "id": "0",
+            "textColor": "default",
+            "backgroundColor": "default"
+          },
+          "content": [
+            {
+              "type": "paragraph",
+              "attrs": {
+                "textAlignment": "left"
+              },
+              "content": [
+                {
+                  "type": "text",
+                  "text": "ParagraphParagraph"
+                }
+              ]
+            }
+          ]
+        },
+        {
+          "type": "blockContainer",
+          "attrs": {
+            "id": "2",
+            "textColor": "default",
+            "backgroundColor": "default"
+          },
+          "content": [
+            {
+              "type": "paragraph",
+              "attrs": {
+                "textAlignment": "left"
+              },
+              "content": [
+                {
+                  "type": "text",
+                  "text": "Paragraph"
+                }
+              ]
+            },
+            {
+              "type": "blockGroup",
+              "content": [
+                {
+                  "type": "blockContainer",
+                  "attrs": {
+                    "id": "3",
+                    "textColor": "default",
+                    "backgroundColor": "default"
+                  },
+                  "content": [
+                    {
+                      "type": "paragraph",
+                      "attrs": {
+                        "textAlignment": "left"
+                      },
+                      "content": [
+                        {
+                          "type": "text",
+                          "text": "Paragraph"
+                        }
+                      ]
+                    }
+                  ]
+                }
+              ]
+            }
+          ]
+        },
+        {
+          "type": "blockContainer",
+          "attrs": {
+            "id": "4",
+            "textColor": "default",
+            "backgroundColor": "default"
+          },
+          "content": [
+            {
+              "type": "paragraph",
+              "attrs": {
+                "textAlignment": "left"
+              }
+            }
+          ]
+        }
+      ]
+    }
+  ]
+}
\ No newline at end of file
diff --git a/tests/end-to-end/keyboardhandlers/keyboardhandlers.test.ts-snapshots/backspaceStartOfBlock-json-chromium-linux.json b/tests/end-to-end/keyboardhandlers/keyboardhandlers.test.ts-snapshots/backspaceStartOfBlock-json-chromium-linux.json
new file mode 100644
index 0000000000..f5a1348948
--- /dev/null
+++ b/tests/end-to-end/keyboardhandlers/keyboardhandlers.test.ts-snapshots/backspaceStartOfBlock-json-chromium-linux.json
@@ -0,0 +1,48 @@
+{
+  "type": "doc",
+  "content": [
+    {
+      "type": "blockGroup",
+      "content": [
+        {
+          "type": "blockContainer",
+          "attrs": {
+            "id": "0",
+            "textColor": "default",
+            "backgroundColor": "default"
+          },
+          "content": [
+            {
+              "type": "paragraph",
+              "attrs": {
+                "textAlignment": "left"
+              },
+              "content": [
+                {
+                  "type": "text",
+                  "text": "Heading"
+                }
+              ]
+            }
+          ]
+        },
+        {
+          "type": "blockContainer",
+          "attrs": {
+            "id": "1",
+            "textColor": "default",
+            "backgroundColor": "default"
+          },
+          "content": [
+            {
+              "type": "paragraph",
+              "attrs": {
+                "textAlignment": "left"
+              }
+            }
+          ]
+        }
+      ]
+    }
+  ]
+}
\ No newline at end of file
diff --git a/tests/end-to-end/keyboardhandlers/keyboardhandlers.test.ts-snapshots/backspaceStartOfBlock-json-firefox-linux.json b/tests/end-to-end/keyboardhandlers/keyboardhandlers.test.ts-snapshots/backspaceStartOfBlock-json-firefox-linux.json
new file mode 100644
index 0000000000..f5a1348948
--- /dev/null
+++ b/tests/end-to-end/keyboardhandlers/keyboardhandlers.test.ts-snapshots/backspaceStartOfBlock-json-firefox-linux.json
@@ -0,0 +1,48 @@
+{
+  "type": "doc",
+  "content": [
+    {
+      "type": "blockGroup",
+      "content": [
+        {
+          "type": "blockContainer",
+          "attrs": {
+            "id": "0",
+            "textColor": "default",
+            "backgroundColor": "default"
+          },
+          "content": [
+            {
+              "type": "paragraph",
+              "attrs": {
+                "textAlignment": "left"
+              },
+              "content": [
+                {
+                  "type": "text",
+                  "text": "Heading"
+                }
+              ]
+            }
+          ]
+        },
+        {
+          "type": "blockContainer",
+          "attrs": {
+            "id": "1",
+            "textColor": "default",
+            "backgroundColor": "default"
+          },
+          "content": [
+            {
+              "type": "paragraph",
+              "attrs": {
+                "textAlignment": "left"
+              }
+            }
+          ]
+        }
+      ]
+    }
+  ]
+}
\ No newline at end of file
diff --git a/tests/end-to-end/keyboardhandlers/keyboardhandlers.test.ts-snapshots/backspaceStartOfBlock-json-webkit-linux.json b/tests/end-to-end/keyboardhandlers/keyboardhandlers.test.ts-snapshots/backspaceStartOfBlock-json-webkit-linux.json
new file mode 100644
index 0000000000..f5a1348948
--- /dev/null
+++ b/tests/end-to-end/keyboardhandlers/keyboardhandlers.test.ts-snapshots/backspaceStartOfBlock-json-webkit-linux.json
@@ -0,0 +1,48 @@
+{
+  "type": "doc",
+  "content": [
+    {
+      "type": "blockGroup",
+      "content": [
+        {
+          "type": "blockContainer",
+          "attrs": {
+            "id": "0",
+            "textColor": "default",
+            "backgroundColor": "default"
+          },
+          "content": [
+            {
+              "type": "paragraph",
+              "attrs": {
+                "textAlignment": "left"
+              },
+              "content": [
+                {
+                  "type": "text",
+                  "text": "Heading"
+                }
+              ]
+            }
+          ]
+        },
+        {
+          "type": "blockContainer",
+          "attrs": {
+            "id": "1",
+            "textColor": "default",
+            "backgroundColor": "default"
+          },
+          "content": [
+            {
+              "type": "paragraph",
+              "attrs": {
+                "textAlignment": "left"
+              }
+            }
+          ]
+        }
+      ]
+    }
+  ]
+}
\ No newline at end of file