A manuscript genealogy of the Percy family names “Matildem et Agnetem” as the daughters and heiresses of “Willielmus de Percy”, adding that Agnes married “Goselino Lovayn fratri Ducis Brabantiæ”. “Mathildis de Percy comitissa de Warwic, filia Willielmi de Perci” donated property to Sawley abbey, for the souls of “…patris mei Willielmi de Percy et Adalidis de Tunbrige matris meæ et Alani de Percy fratris mei et Agnetis sororis meæ”, by undated charter. "Agnes de Perci…in viduetatis meæ" confirmed the donation of "ecclesiam de Samara" made by "Willelmus de Perci pater meus" to Whitby, for the soul of "Jocelini mariti mei defuncti", by undated charter. “Agnes de Percy” confirmed donations of property by “Matildis comitissa de Warwicke soror mea” to Sawley abbey, for the souls of “Jocelini quondam sponsi mei et Willielmi de Percy patris mei et Adelidis de Tunebrigge matris meæ”, by undated charter, witnessed by “…W. de Percy…”. “Agnes de Percy” made a grant to the hospital of St Peter, York, after the death of “sponsi mei Jocelini de Luvain”, by charter dated to [1182/85]. A charter dated 4 Feb 1196 records a claim by “Sibillam de Vall et Agnetem de Percy” against the church of Beverley relating to “advocacione ecclesie de Lekenfeld”. 1
Research Notes: