Betrothed (before Sep 1272) to CHARLES de Flandre, son of ROBERT de Flandre Comte de Nevers, later ROBERT III Count of Flanders & his first wife Blanche d'Anjou ([1266]-1277, aged 11). m (Basel 5 Feb or 6 Mar 1285) as his second wife, RUDOLF I King of Germany, son of ALBRECHT IV "dem Weise" Graf von Habsburg & his wife Heilwig von Kiburg (Burg Limburg, Upper Rhine 1 May 1216-Germersheim near Speyer 15 Jul 1291, bur Speyer Cathedral).