William IX, Marquess of Montferrat

William IX, Marquess of Montferrat
Portrait of William IX by Macrino d'Alba
Marquess of Montferrat
Reign 1494–1518
Predecessor Boniface III Palaiologos
Successor Boniface IV Palaiologos
Born 10 August 1486
Died (1518-10-04)4 October 1518
Trino
Noble family House of Palaiologos
Spouse(s) Anna d'Alençon
Issue
Father Boniface III, Marquess of Montferrat
Mother Maria of Serbia

William IX (10 August 1486 – 4 October 1518) was marquess of Montferrat from 1494 until his death.

Biography

He was the son of marquis Boniface III and Maria of Serbia, daughter of prince Stefan Branković of Serbia. In time when he succeeded his father (1494), William he was still a minor. A first, his mother acted as regent. After her death (1495), regency passed to his mother's cousin Constantine Komnen-Arianiti (1495-1499).[1]

He continued the pro-French policy of his father and, in 1508, he married to princess Anna d'Alençon, daughter of René d'Alençon. During the Italian Wars, in 1513, he protected the French retreat from Milan; however, to avoid retaliations from Maximilian Sforza William was forced to pay him 30,000 scudi.

The Milanese Duke did not respect the treaty, and his troops invaded Montferrat and sacked numerous cities. At the same time, informed that his relative Oddone, marquess of Incisa, was trying to obtain the title of marquess of Montferrat, William marched to Incisa and occupied that lordship. Oddone and his son Badone were sentenced to death. However, the annexation was later declared null by Holy Roman Empire diplomacy, but in the subsequent year William was able to maintain the new lands.

He had 3 children with Anna d'Alençon:

He died in 1518 and was succeeded by his son Boniface IV, initially with his mother Anne d'Alençon as regent.[2]

References

Sources

  • Haberstumpf, Walter (2009). Regesti dei Marchesi di Monferrato (secoli IX-XVI). Alessandria: San Giorgio Editrice.

Ancestry

William IX, Marquess of Montferrat
Born: 10 August 1486 Died: 1518
Preceded by
Boniface III		 Marquess of Montferrat
1494–1518		 Succeeded by
Boniface IV
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