William VIII, Marquis of Montferrat

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

William VIII, Marquis of Montferrat
Marquis of Montferrat
PredecessorJohn IV Palaiologos
SuccessorBoniface III Palaiologos
Born19 July 1420
Casale Monferrato
Died27 February 1483(1483-02-27) (aged 62)
Casale Monferrato
Noble familyPalaeologus-Montferrat
Spouse(s)Marie de Foix
Elizabetta Sforza
Bernarde de Brosse
FatherJohn Jacob, Marquis of Montferrat
MotherJoanna of Savoy

He was the second son of Marquis 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),[1] 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 William died in Casale Monferrato, he was succeeded by his brother Boniface III.



  • Denieul-Cormier, Anne (1968). A Time of Glory: The Renaissance in France, 1488-1559. Doubleday.
Preceded by
John IV
Marquis of Montferrat
Succeeded by
Boniface III