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William VIII, Marquess of Montferrat

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William VIII Palaiologos (Italian: Guglielmo VIII Paleologo; 19 July 1420 – 27 February 1483) was the Marquess of Montferrat from 1464 until his death.

William VIII, Marquess of Montferrat
Marquess of Montferrat
PredecessorJohn IV Palaiologos
SuccessorBoniface III Palaiologos
Born19 July 1420
Casale Monferrato
Died27 February 1483(1483-02-27) (aged 62)
Casale Monferrato
Noble familyHouse of Palaiologos
Spouse(s)Marie de Foix
Elizabetta Sforza
Bernarde de Brosse
FatherJohn Jacob, Marquess of Montferrat
MotherJoanna of Savoy
Two of William's daughters from a fresco in the Cappella di Santa Margherita, Serralunga di Crea by the Maestro di Crea

He was the second son of Marquess John Jacob, and inherited the Marquisate after the death of his elder brother John IV. He obtained by Emperor Frederick III the territories lost to Savoy from 1435. William served as condottiero for Francesco I Sforza of Milan and was later the tutor of the latter's son Galeazzo Maria. When the latter was assassinated, William acted as moderator in the Duchy of Milan.

William married firstly, on 19 January 1465, Marie de Foix (d.1467), daughter of Gaston IV, Count of Foix; and secondly on 18 July 1469 Elizabetta Sforza (1456–1473), daughter of Francesco I Duke of Milan; and finally, on 6 January 1474, Bernarde de Brosse (d.17 February 1485).

He had no legitimate son. By his second marriage, he had daughters:

When he died in Casale Monferrato, he was succeeded by his brother Boniface III.


Preceded by
John IV
Marquess of Montferrat
Succeeded by
Boniface III