Nielsen Hayden genealogy
Descendants of Thomas of Savoy
- 1259Father: Tomaso I (20 Mar 1177 Charbonnieres Castle, Savoy - 20 Jan 1233 Aosta, Savoy)
Mother: Margaret of Geneva ( - 13 Apr 1236)
Thomas of Savoy ( - 7 Feb 1259)
Béatrix di Fiesco ( - 15 Jul 1283)
   └─ Margaret of Savoy ( - Bef 14 May 1292)
    + Baldwin de Revières (1 Jan 1236 - Bef 13 Sep 1262 France)(m. 1257)
    + Robert Aguillon (of Addington, Surrey, England - 15 Feb 1286)(m. 1269)