Powys-Lybbe Forbears - Person Sheet
NameWilliam II Bertram [60, Bertram article, Vol II, p. 160, note (a)], [121, Mitford Northumberland barony (2nd class), p. 131], [119, Father, Roger Bertram, p. 174]
Death1199
GeneralFeudal baron (2nd class) of Mitford, Northumberland.