William III Talvas Montgomerie, Count of Ponthieu and Montgomerie
1179 - 1221 (41 years)(
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- 1 William III Talvas Montgomerie, Count of Ponthieu and Montgomerie [1] b. 1 Nov 1179 d. 4 Oct 1221
- Alix Capet b. 4 Oct 1160 d. 18 Jul 1218
- 2 Marie de Ponthieu Montgomerie, Countess of Pointhieu [1.1] b. 17 Apr 1199 d. Sep 1251
- + Simon de Dammartin, Count of Pointhieu b. 1180 d. 21 Dec 1239
- + Simon de Dammartin, Count of Pointhieu b. 1180 d. 21 Dec 1239
- 2 Marie de Ponthieu Montgomerie, Countess of Pointhieu [1.1]