Кто женился на Ги де Дампьер?

Ги де Дампье́р (фр. Gui de Dampierre; 1225/1226 — 7 марта 1305, Компьен) — граф Фландрии с 1251 года (единовластно с 1278 года), маркграф Намюра с 1263 года, 2-й сын Гильома II, сеньора де Дампьер, и Маргариты II, графини Фландрии и Эно (Геннегау).

Matilda of Béthune (died 8 November 1264), was a noblewoman from Artois who became countess of Flanders by marriage to Guy, Count of Flanders. She was heiress to her father's titles as Lady of Béthune, of Dendermonde, of Richebourg and of Warneton, as well as Advocatess of the Abbey of Saint Vaast at Arras, and the ruler of these states in 1248–1264. She was the mother of Robert, Count of Flanders, known as Robert of Béthune after his mother.

Изабелла Люксембургская (1247—1298) — графиня Фландрии и маркграфиня Намюра в браке с Ги де Дампьером.