SIBYLLE de Flandre ([1176/77]-after 1236). The Flandria Generosa names "Sibillam filiam [Petri et comitissam de Nevers]"[461]. The Chronicon Hanoniense refers to the daughter of "Petrus…fratris…comits Flandrie et Viromandie" as "[uxor] Roberto…de Wavrin" but does not name her[462]. Robert of Torigny records that "Petrus frater Philippi comitis Flandrensium" and his wife had "unam filiam", stating (apparently incorrectly) that she married "Robertus filius comitis Roberti fratris Lodovici regis Francorum"[463] who in other sources is reported as the fourth husband of her mother. "Matildis comitissa" donated property to Cîteaux for the souls of "Guidonis comitis Nivernensis, Petri Flandrensis et Odonis" with the consent of "filie mee Agnes…filia comitis Guidonis et Sibilla filia comitis Petri flandrensis" by charter dated 1182[464]. Heiress of Saint-Vlaast, Lillers and Vladslo. "Robertus de Wavrin dominus Lilerii et scenescalcus Flandrie" freed two serfs, with the consent of "uxore mea Sibilia…etiam…fratre meo Hellino et Hildiarde et Maroia et Ada sororibus meus et R. de Senghin et Gossuino patruis meis et A. de Meallens et Y. de Spineto amitis meis", by charter dated 1193[465]. "Sibilla domina de Wavrin" sold revenue from Santes to Lille Saint-Pierre by charter dated 1225[466]. m (before 1193) ROBERT de Wavrin Seneschal of Flanders, son of HELIE de Wavrin Seneschal of Flanders & his wife Tirsella d'Arras (-before 1197).