• Born: 1110
• Married: Before 28 Jul 1133
• Died: 1191

  Research Notes:

"Marchio Ragnerius filius quondam Willielmi et Gisla jugalis filia quondam Vialii, sive Willielmus filius iam dicti Ragnerii nec non et Julitta jugalis filia Lupaldi, atque Ardezonus filius quondam item Ardezonii" donated property to the monastery of Locedio by charter dated 28 Mar 1133 "in castro…Monsbellus". His parentage is suggested by William of Tyre who names him "Wilelmus marchio de Monteferrato eiusdem domini imperatoris sororius" when recording his presence with Konrad III King of Germany in Palestine in 1148, and "avunculus" of Louis VII King of France when referring to the marriage of his son Guglielmo in 1176.

He succeeded his father in [1137] as GUGLIELMO V "il Vecchio" Marchese di Monferrato. Leader of the Ghibellin party in Italy. "Guilelmus marchio filius quondam Rainerii…marchionis et Julita jugalis filia quondam marchionis Leopoldi de Austria" donated property to the monastery of Grassano by charter dated [15/16] Mar 1156.

He quarrelled with Emperor Friedrich I "Barbarossa" King of Germany and lent support to the Italian policy of Emperor Manuel I. "Dominus Wilielmus Montisferrati marchio…et Bonefacius eius filius" renounced their rights in property in Cinaglio in favour of the church of Casale by charter dated 3 Sep 1184. He arrived in Palestine in 1185 and was given a small fief in Galilee. Saladin captured him and threatened to kill him unless his son Corrado surrendered Tyre but spared his life when his son refused. He was released and allowed to return to his son at Tyre in Jul 1188. ¹