Guglielmo del Monferrato

• 
• Born circa 1243
• Deceased on February 6, 1292 in Alessandria, at the approximate age of 48 years

Parents

• Bonifazio del Monferrato, Boniface II de Montferrat (1202 - 1253), marchese del Monferrato
• Margherita di Savoia ( - 1254)

Family

• Married on March 28, 1257, with Isabel de Clare, issuing
  • Margherita
• Married with Beatriz de Castilla (c. 1254 - c. 1280), issuing
  • Violanta (c. 1274 - c. 1317)
  • Giovanni (1277 - 1305)
• Married with Elena del Bosco