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Son of Roger II of Sicily and N.N. Brother of ... de Hauteville, of Sicily; ... de Hauteville, of Sicily; Adelisa of Loreto, of Sicily and Marina (illegitimate daughter of Roger II of Sicily) Half brother of Roger III de Hauteville, duke of Apulia; Tancred de Hauteville, prince of Bari; Alphonse de Hauteville, prince of Capua; William I Hauteville, "the Bad" king of Sicily and Constance I, Queen of Sicily
-https://www.treccani.it/enciclopedia/simone-d-altavilla_(Dizionario...
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