Events
Date of Birth: unknown.
Place of Birth: unknown.
Date of Death: unknown.
Place of Death: unknown.
Relationships
Father: Ottone (or Guglielmo).
Both Cognasso and Cawley make Guglielmo III’s grandfather Guglielmo, son of Aleramo. Cawley gives Guglielmo III’s father as Ottone. Cognasso (p. 144) gives him as Guglielmo II and makes Ottone the son of Guglielmo I’s brother Riprando. Haberstumpf states that Ottone was a son of Guglielmo I.
Mother: unknown.
Spouse: unknown.
This relationship is given by Cawley.
Spouse: Otta di Agledo.
This relationship is given by Cognasso (p. 151). Cognasso gives her father as Teobaldo di Agida and Cawley as Tebaldo di Agledo.
Children (by his first wife):
(Complete source citations for facts about the children on this page are currently outside of the scope of this project.)
Enrico “il Balbo”.
Children (by Otta):
Guglielmo IV “il rinforzato”, margrave of Montferrat.
Ranieri, margrave of Montferrat, married Gisèle de Bourgogne-Comté.
References
Codex Astensis qui de Malabayla communiter nuncupatur Vol. 1, (Vol. 4, second series, in Atti della Reale Accademia dei Lincei (Rome, 1887).
Cognasso, Francesco. Il Piemonte Nell’ Età Sveva (Torino: 1968).
Cawley, Charles. “RANIERI de Monferrato” in Medieval Lands: A prosopography of medieval European noble and royal families.
Haberstumpf, Walter. “OTTONE I di Monferrato” in Dizionario Biografico degli Italiani Volume 80 (2014).