William II of Dampierre

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William II (11963 September 1231) was the lord of Dampierre from 1216 until his death. He was the son of Guy II, constable of Champagne, and Matilda, heiress of Bourbon.

His brother, Archambaud VIII, inherited Bourbon and he Dampierre. He married Margaret II, Countess of Flanders and Hainault, in 1223 and was thus regent of Flanders until his death as "Willem (or Guillaume) I."

He had four children (three sons) by Margaret and the eldest took part in the War of the Succession of Flanders and Hainault:


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