William of Montferrat

William of Montferrat is the name of:

• William I of Montferrat (d. before 933)
• William II of Montferrat (died probably around 961)
• William III of Montferrat (991 Ã¢Â€Â“ bef.1042), son of Otho I
• William IV of Montferrat (c.1084–c.1100)
• William V of Montferrat (c.1136–1191)
• William Longsword of Montferrat (c. 1140–1177)
• William VI of Montferrat, (1207–1225)
• William of Montferrat (monk), 13th century
• William VII of Montferrat (c.1255–1292), titular king of Thessalonica
• William VIII of Montferrat (1464–1483)
• William IX of Montferrat (1494–1518), see Casale Monferrato
• William X of Montferrat, 1st duke of Montferrat, Duke of Mantua