Agnes de Percy (1134-1200) (1134–1200) Parents Alice de Tunbridge William de Percy Children Maud de Percy Richard de Percy Henry de Percy Siblings Matilda de Percy Cadwgan ap Cadwaladr ap Gruffudd ap Cynan Rhisiart ap Cadwaladr ap Gruffudd II ap Cynan Alan de Percy Emma de Percy Alice de Percy Walter de Percy Partners Joscelin of Louvain