John I (1357–1433), reigned 1385–1433; known as John the Great. Reinforced by an English army, he defeated the Castilians at Aljubarrota in 1385 and won independence for Portugal.
John II (1455–95), reigned 1481–95.
John III (1502–57), reigned 1521–57.
John IV (1604–56), reigned 1640–56; known as John the Fortunate. The founder of the Braganza dynasty, he expelled a Spanish usurper and proclaimed himself king.
