NameJocelin of Louvain [60, Percy art, Vol X, p. 435 seq], [121, Topcliffe, Yorks feudal barony (2nd class), p. 148], [80, Goscelin frater Regine, p. 989]
Deathbef Dec 1180
GeneralBrother of Q. Adeliz (to Hen I) who gave him the Honour of Petworth.
Spouses
1Agnes de Percy [60, Percy art, Vol X, pp. 445-448], [119, Mother, Adelicia de Clare, p. 397], [121, Topcliffe, Yorks feudal barony (2nd class), p. 148], [119, Agnes de Percy, p. 629]
Notes for Jocelin of Louvain
DNB: Took his wife's name on marriage. Round & CP: He didn't!
Oct 2006: Peter Stewart on the newsgroup soc.genealogy.medieval has roundly stated that Clemence could not have been the mother of Jocelin of Louvain as she was beyond childbearing age at the time of her marriage to Godefroy. Taf Farmerie supported this. Looks like some change in this database is in order.
Arms Generally notes for Jocelin of Louvain
The Baronage website
http://www.baronage.co.uk/2001/northeast.htm makes is clear that the arms of the modern Percies are those of Louvain, or a lion azure and that the arms of the Percy family were in fact Azure five fusils or.