Geoffrey of Hauteville Norman military leader (1020–1071) Parents Miruel of Hauteville Tancred of Hauteville Children Robert I of Loritello Rodolfo di Catanzaro Siblings Serlo I of Hauteville Roger I of Sicily Mauger of Hauteville William Iron Arm Robert Guiscard Drogo of Hauteville William of the Principate Humphrey of Hauteville Béatrice de Hauteville Fredesenda de Hauteville Humbert de Hauteville