Agnes de Valence (1250-1310) (1250–1310) Parents William de Valence, 1st Earl of Pembroke Joan de Munchensi Children Siblings Aymer de Valence, 2nd Earl of Pembroke Isabel (2) ferch William de Valence Joan de Valence John de Valence Margaret de Valence William de Valence Isabel de Valence Elizabeth de Comyn Partners Maurice Fitzgerald Sir Hugh Balliol