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
Joan of Navarre, Queen of England traditional English sources as John V). She was his third wife and the only one to bear him children. Upon the death of John IV on 1 November 1399, he was succeeded by their son, John V. Her son being still a minor, she was made his guardian and the regent of Brittany during his minority. Not long after, she was given a proposal by Henry IV. The marriage proposal was given out of mutual personal preference rather than a dynastic marriage. According to the "Encyclopædia Britannica", affection developed between Joan and Henry Bolingbroke (the future King Henry IV) while