William de Percy 1st Baron Percy [4013] ²⁵

  General Notes:

http://www.tudorplace.com.ar/PERCY.htm#William De PERCY (1º B. Percy)

Said to have accompanied Hugh d'Avranches, later Earl of Chester, f rom Normandy to England.

See The Complete Peerage vol.X,p436.

http://www.hull.ac.uk/php/cssbct/cgi-bin/gedlkup.php/n=royal?royal26456

William married Emma de Port [4014] [MRIN: 1160], daughter of Hugh de Port [4018] and Orence [4019].