William de [Baron Ros] Ros - Pedigree | FamilyCentral
 19 May 1329 - Bef 3 Dec 1352
 Abt 1285 - 3 Feb 1342/43
 Abt 1306 - Bef 22 Oct 1363
 1275 - 14 Apr 1322
 1280/86 - 1333
 Abt 1248 - Feb 1287/88
 Abt 1249 - Aft 1309
 1250 - 1291
  Children