Beatrix de Montdidier 1051 - 1129 (1051–1129) Parents Alix de Roucy Hilduin IV of Montdidier Children Marguerite du Perche Juliette du Perche Maud de Perche Rotrou III, Count of Perche Siblings Marguerite of Roucy Ebles II of Roucy Ada of Roucy Ermentrude de Roucy Adela of Roucy Aelis of Roucy André of Ramerupt Felicia of Roucy Partners Geoffrey II, Count of Perche