ARNAUD de Grantmesnil . Orderic Vitalis names “Hugonem et Rodbertum et Ernaldum et totidem filias” as the children of “Rodberto de Grentemaisnilio” and his wife[297]. Orderic Vitalis records that "Rodbertus et Hugo et Ernaldus filii Rodberti de Grentemaisnilio" donated "in Nucereto ecclesia ... villa ... Solengiacus, in Oillei ... Anglisca ... villa ... ecclesia ... Villaris ... in monasterio de Waiprato ... decimam de Buinna, et in Belmeis tertiam partem molendini ... unum hospitem in Collavilla" and numerous other named properties to Ouche[298]. Orderic Vitalis names “... Willermus de Monsteriolo et Ernaldus de Grentemaisnilio” among those who left Normandy and settled in Apulia[299]. Europäische Stammtafeln dates his journey to Italy in [1050][300], although the basis for this speculation is not known. Malaterra names "iuvenis … Arnaldus … frater iuvenculæ uxoris eius [Rogerii comitis Siciliæ]"[301].