He mentions in the Gesta Guillelmi that the duty of a historian is to remain within the ' bounds of the truth . ' ; but he failed to obey this rule .
William of Poitiers undoubtedly thought of himself as an historian .
William of Poitiers mentions in the Gesta Guillelmi that the duty of a historian is to remain within the ' bounds of the truth . ' ; but William of Poitiers failed to obey this rule .
William of Poitiers undoubtedly thought of himself as an historian .