. "William de Redvers, 5th Earl of Devon" . . . . . . . "William de Vernon, 5th Earl of Devon" . . . "1217" . . . . . . "William de Redvers
(aka de Vernon)
'''5th Earl of Devon'''" . . . . . . . "William Rivers, Earl of Devon" . "5th Earl" . . "William de Redvers" . "William de Redvers, 5th Earl of Devon" .