| Clare FitzRoy, Countess of Euston Politician | child · mother | - | - | |
| Lady Rosetta FitzRoy Close Associate | child | - | - | |
| Alfred FitzRoy, Earl of Euston Close Associate | child | - | - | |
| Lady Emily FitzRoy Close Associate | elder sister · sibling | - | - | |
| Olivia FitzRoy, Duchess of Grafton Close Associate | spouse | | - | |
| Lady Louise FitzRoy Close Associate | elder sister · sibling | - | - | |
| Lady Charlotte FitzRoy Close Associate | sibling · younger sister | - | - | |
| Lady Isobel FitzRoy Close Associate | sibling · younger sister | - | - | |
| Hugh FitzRoy, 11th Duke of Grafton Politician | grandfather · relative | - | - | |
| Lord Rafe FitzRoy Close Associate | child | - | - | |
| James FitzRoy, Earl of Euston Close Associate | father | - | - | |