John II of Montferrat

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John II Palaeologus (5 February 1321 – 19 March 1372) was the Margrave of Montferrat from 1338. He was the son of Theodore I of Montferrat, with whom he was associated in the government from 1336. He had great fortune in extending the boundaries of the margraviate against his neighbours.

With the help of his cousin Otto of Brunswick, John turned against the Angevins of Piedmont and Savoy. On 9 October 1338, he was named governor of Asti. On 22 April 1345, at the Battle of Gamenario, he defeated Reforza d'Angoult. With the tacit support of Luchino Visconti, John occupied Alba, Bra, Valenza, and, in 1348, Cuneo. His power grew in 1355 when he accompanied the Emperor Charles IV through Italy. At that time he received the cities of Cherasco, Novara, and Pavia.

By a marriage to the last titular Queen of Majorca, Isabella, he lost the support of the emperor and had to fend off attacks from imperial and Visconti troops. This conflict concluded with restitution of territory around Pavia occupied by John to the Visconti of Asti. John lost many vassals to the Visconti.

In his will of 1372, John left the tutelage of his children to Otto of Brunswick and Amadeus VI of Savoy. He had four sons, three of whom succeeded him in turn, and a daughter with his wife Isabella:

• Secondotto
• John
• Theodore
• Margaret
• William

John died soon after composing his testament and was buried at Chivasso.

Preceded by Theodore I

Margrave of Montferrat 1338 – 1372

Succeeded by Otto III