Jean III of Armagnac

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Jean III of Armagnac, (1359 – July 25, 1391), was a count of Armagnac, of Fézensac and Rodez from 1384 to 1391. He was the son of Jean II of Armagnac, and Jeanne of Périgord.

May 14 1378, Jean III married Marguerite (1363-1443), countess of Comminges (1363-1443). They had two girls:

Jeanne, who married Guillaume-Amanieu de Madaillan (1375-1414) in 1409.
Marguerite who married Guillaume II, Viscount of Narbonne in 1415. He was killed in the battle of Verneuil, on August 14, 1424),

In 1390, Jean claimed the kingdom of Majorca, but was overcome by the troops of Juan I of Aragon, in a battle near Navata. Jean III consequently led military actions in Roussillon. In 1391, he had to leave for Italy in order to come to assistance of Charles Visconti, lord of Parma and husband of his sister, Beatrix of Armagnac, who was in conflict with his cousin Galeazzo Visconti, duke of Milan.