Humbert de Hauteville 1025 - 1071 (1020–1071) Parents Fressenda of Hauteville Tancred of Hauteville Children Constantin Humbertopoulos Siblings Robert Guiscard Roger I of Sicily Mauger of Hauteville Fredesenda de Hauteville William of the Principate Serlo I of Hauteville Geoffrey of Hauteville Humphrey of Hauteville Drogo of Hauteville William Iron Arm Béatrice de Hauteville