| Male Philip I of Savoy-Achaea, Lord of Piedmont, Prince of Achaea |
| Birth | 1278 | |
| Death | 25 Sep 1334 | |
| Burial | ||
| Marriage | 12 Feb 1301 | Rome, Italy |
| Other Spouse | Catherine de la Tour du Pin | F4319 | |
| Marriage | ||
| Father | Thomas III of Savoy, Count of Savoy, Lord of Piedmont | F5279 Group Sheet | |
| Mother | Guyonne de Châlon | F5279 Group Sheet | |
| Female Isabella of Villehardouin, Princess of Achaea |
| Birth | abt. 1260 | |
| Death | 23 Jan 1312 | |
| Burial | ||
| Father | ||
| Mother | ||
| Female Margarita of Savoy-Achaea |
| Birth | ||
| Death | ||
| Burial | ||
| Spouse | Renaud de Forez, Lord of Malaval | F4506 | |
| Marriage | ||