| Father | Emanuel Scrope Howe (1698 - ) |
| Mother | Mary Sophia Charlotte von Kielmannsegg (1703 - 1782) |
| Sibling | George Scrope Howe (1720 - 1728) |
| Sibling | Caroline Howe (1721 - 1814) |
| Sibling | Carolina Howe (1722 - 1814) |
| Sibling | Count George Augustus Howe (1724 - 1758) |
| Sibling | Admiral Sir Richard Howe 1st Earl Howe, K.G., First Lord of The Admiralty (1726 - 1799) |
| Sibling | General William Howe 5th Viscount Howe (1729 - 1814) |
| Sibling | Thomas Howe (1730 - 1771) |
| Sibling | Mary Howe (1730 - 1819) |
| Sibling | Juliana Howe (1732 - 1803) |
| Sibling | Sophia Charlotte Howe (1733 - 1787) |