William FitzOsborne, Count of Bretoille, Earl of Hereford
William FitzOsborne, 1st Earl of Osborne, Viceroy of England
William Fitzosborne, a distant relation to king William the conqueror, was created by that monarch earl of Hereford, which title became extinct by the forfeiture of Roger, second earl of Hereford, 1078.
He was buried in Abbey of Cormeilles.
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