John of Gaunt return for a large annual payment and the marriage of their daughter Catherine to John of Trastámara's son Henry. John left Portugal for Aquitaine, and he remained in that province until he returned to England in November 1389. This effectively kept him off the scene while England endured the major political crisis of the conflict between Richard II and the Lords Appellant, who were led by John of Gaunt's younger brother Thomas of Woodstock, Duke of Gloucester. Only four months after his return to England, in March 1390, Richard II formally invested Gaunt with the Duchy of Aquitaine, thus providing
Succession to the French throne a dynastic struggle between the House of Plantagenet and the House of Valois for control of the French throne. The conflict, known as the Hundred Years War, dragged on for decades. England won several famous military victories, but was unable to fully overcome French resistance. Yet in the aftermath of the Battle of Agincourt, Henry V of England, great-grandson of Edward III, became the heir to the French throne in accordance to the Treaty of Troyes. He would marry Catherine, daughter of King Charles VI of France, while Charles' son, the Dauphin Charles was declared illegitimate and disinherited. Yet Henry