Ferdinand I of Portugal

Timeline

1. 1371–1380Lisbon · LisbonIn the 1370s Ferdinand maintained an alliance with the Trastámara dynasty of Castile, repeatedly campaigning jointly with Castile in Galicia and elsewhere, while coping with noble discontent at home stirred by Queen Eleanor Teles.
2. 1380–1383Lisbon · LisbonIn his later years Ferdinand left only a daughter, Beatrice, whom he betrothed in 1383 to John I of Castile in an attempt to preserve Portuguese independence through marriage, but he died shortly afterward, and the question of succession immediately ignited conflict between the Burgundian and Aviz factions.