Family: Guglielmo del Monferrato, 12th Marquis of Monferrato / Isabella de Clare (F99)

m. 1258

• Male Guglielmo del Monferrato, 12th Marquis of Monferrato

  
  

  Birth	Abt. 1240	Trino, Vercelli, Piemonte, Italy
  Death	6 Feb 1292	Alessándria, Alessandria, Piemonte, Italy
  Burial		Lucedio Abbey, Vercelli, Piemonte, Italy
  Marriage	1258  [1]
  Other Spouse	Beatrice di Castiglia | F70
  Marriage
  Father	Bonifacio II del Monferrato, 11th Marquis of Monferrato | F71 Group Sheet
  Mother	Margherita di Savoia | F71 Group Sheet

  
  

  Female Isabella de Clare

  
  

  Birth	Abt. 1240
  Death	Bef. 1271
  Burial
  Father	Richard de Clare, 6th Earl of Gloucester | F100 Group Sheet
  Mother	Maud de Lacy | F100 Group Sheet

  
  

  Female daughter del Monferrato

  
  

  Birth
  Death
  Burial

  
  

  Female Margherita del Monferrato

  
  

  Birth
  Death
  Burial
  Spouse	Giovanni di Castiglia, Lord of Valencia | F101
  Marriage

  
  

• Sources

  [S49] "William VII, Marquis of Montferrat," Wikipedia, last modified 7 Mar 2025, https://en.wikipedia.org/wiki/William_VII,_Marquis_of_Montferrat.

  
  

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