John IV of Montferrat

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John IV Palaeologus (Italian: Giovanni IV Paleologo; June 24, 1412 - January 19, 1464) was the Margrave of Montferrat from 1445 until his death.

He was born in Casale Monferrato, the son of John Jacob of Montferrat, and, during the latter's unlucky war against Amadeus IV of Savoy, he was imprisoned by the latter and used as hostage.

He fought as condottiero for the Republic of Venice in the war that ensued after the heirless death of Filippo Maria Visconti of Milan (see Wars in Lombardy). During his reign the Palaeologus family lost the throne of Constantinople, captured by the Ottoman Turks in 1453.

John IV died in 1465 and was succeeded by his brother William VIII.

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Preceded by
John Jacob
Margrave of Montferrat
14181445
Succeeded by
William VIII