Person:Giangiacomo di Monferrato (1)
Giangiacomo di Monferrato
b.23 Mar 1395
d.12 Mar 1445
Parents and Siblings
(edit)
m. 1393
  1. Sofia di Monferrato - 1434
  2. Giangiacomo di Monferrato1395 - 1445
Spouse and Children
(edit)
m. 24 Apr 1411
  1. John IV _____, of Montferrat1413 - 1464
  2. Amadea di MonferratoAbt 1420 - 1440
  3. Guglielmo VIII _____, marchese del Monferrato1420 - 1483
  4. Boniface III _____, Marquess of Montferrat1424 - 1494
  5. Isabella di Monferrato
  6. Teodoro di Saluzzo1425 - 1484
Add another spouse & children
Facts and Events
Name Giangiacomo di Monferrato
Alt Name John Jacob of Montferrat
Gender Male
Birth[2][1] 23 Mar 1395
Marriage 24 Apr 1411 to Jeanne de Savoie
Death[2][1] 12 Mar 1445
Reference Number? Q589230?


the text in this section is copied from an article in Wikipedia

John Jacob Palaeologus (Italian: Giovanni Giacomo Paleologo) (March 23, 1395 – March 12, 1445) was the Margrave of Montferrat from 1418 to 1445.

He was born in Trino, Piedmont, the son of Theodore II of Montferrat, with whom he collaborated in the government of the marquisate from 1404. His mother was Johanna of Bar, daughter of Robert of Bar and Marie of France, Duchess of Bar. In 1412 he married Joanna of Savoy, sister of Duke Amadeus VIII.

After his father's death in 1418, John Jacob received the investiture as Marquis by emperor Sigismund. He distinguished himself for some brilliant military campaign in the Apennines area; he also increased his prestige through the marriage between his sister Sofia and the second last Byzantine Emperor, John VIII Palaiologos.

John Jacob's expansion, however, spurred the reaction of the Dukes of Savoy and of Filippo Maria Visconti of Milan. In 1431 they signed an alliance aiming at the cancellation of the Montferrat state. John Jacob was therefore compelled to ask support to France. In 1432 he was defeated anyway and sued for peace, ceding several territories to Savoy but retaining the seigniory over Montferrat, although with the status of Savoy vassal.

However, when Amadeus VIII asked him the payment of the war expenses, John Jacob rebelled; but, after having besieged in Chivasso, he was forced to cease. His state and his prestige were shattered, and he had again to declare himself vassal of Savoy.

John Jacob died at Casale Monferrato in 1445, being succeeded by his son John IV.

This page uses content from the English Wikipedia. The original content was at John Jacob of Montferrat. The list of authors can be seen in the page history. As with WeRelate, the content of Wikipedia is available under the Creative Commons Attribution/Share-Alike License.
References
  1. ↑ 1.0 1.1 GIANGIACOMO di Monferrato, son of TEODORO II Marchese di Monferrato & his second wife Jeanne de Bar (23 Mar 1395-12 Mar or [13 Sep] 1445), in Cawley, Charles. Medieval Lands: A prosopography of medieval European noble and royal families.
  2. ↑ 2.0 2.1 John Jacob of Montferrat, in Wikipedia: The Free Encyclopedia.
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