| Infanta Elena, Duchess of Lugo Close Associate | child | - | - | |
| Miguel Urdangarín y de Borbón Close Associate | grandson · relative | - | - | |
| Infanta Cristina of Spain Close Associate | child | - | - | |
| Queen Elizabeth, The Queen Mother Close Associate | godparent | - | - | |
| Prince Philip, Duke of Edinburgh Politician | relative · second uncle | - | - | |
| Irene Urdangarín y de Borbón Close Associate | granddaughter · relative | - | - | |
| Victoria de Marichalar y Borbón Close Associate | granddaughter · relative | - | - | |
| Leonor, Princess of Asturias Close Associate | granddaughter · relative | - | - | |
| Felipe de Marichalar y Borbón Close Associate | grandson · relative | - | - | |
| Constantine II of Greece Close Associate | sibling · younger brother | - | - | |
| Juan Urdangarín y de Borbón Close Associate | grandson · relative | - | - | |
| Pablo Urdangarín y de Borbón Close Associate | grandson · relative | - | - | |
| Infanta Sofía of Spain Close Associate | granddaughter · relative | - | - | |
| Princess Irene of Greece and Denmark Close Associate | sibling · younger sister | - | - | |
| Charles III Politician | male second cousin · relative | - | - | |