Guyonne married Thomas III of Piedmont, Count of Piedmont in 1274. Thomas (son of Thomas II de Savoie, Count of Flanders and Beatrice of Fieschi) was born about 1246; died on 16 May 1282. [Group Sheet] [Family Chart]
Family/Spouse: Isabella of Villehardouin. Isabella (daughter of William II of Villehardouin, Prince of Achaea) was born in 1260/1263; died on 23 Jan 1312. [Group Sheet] [Family Chart]
Family/Spouse: Unknown. [Group Sheet] [Family Chart]
Madilda married Ludwig III of the Palatinate Wittelsbach, Elector Palatine on 30 Nov 1417. Ludwig (son of Rupert III of the Palatinate Wittelsbach, Holy Roman Emperor and Elisabeth of Nuremberg) was born in 1378; died on 30 Dec 1436. [Group Sheet] [Family Chart]
Frederick married Dorothea of Denmark Oldenburg on 26 Sep 1535. Dorothea (daughter of Christian II of Denmark Oldenburg, King of Denmark and Isabella Habsburg) was born on 10 Nov 1520; died on 20 Sep 1580. [Group Sheet] [Family Chart]