Note 306 — BOOK IV.

John of Portugal, about a year after the battle of Aljubarota, married Philippa, eldest daughter of John of Gaunt, duke of Lancaster, son of Edward III. who assisted the king, his son-in-law, in an irruption into Castile, and, at the end of the campaign, promised to return with more numerous forces for the next. But this was prevented by the marriage of his youngest daughter, Catalina, with Don Henry, eldest son of the King of Castile. The King of Portugal on this entered Galicia, and reduced the cities of Tui and Salvaterra. A truce followed. While the tyrant of Castile meditated a new war, he was killed by a fall from his horse, and, leaving no issue by his queen, Beatrix (the King of Portugal's daughter), all pretension to that crown ceased. The truce was now prolonged for fifteen years, and, though not strictly kept, yet, at last the influence of the English queen, Catalina, prevailed, and a long peace, happy for both kingdoms, ensued.