John of Gaunt III's rule was becoming unpopular due to high taxation and his affair with Alice Perrers, political opinion closely associated the Duke of Lancaster with the failing government of the 1370s. Furthermore, while King Edward and the Prince of Wales were popular heroes due to their successes on the battlefield, John of Gaunt had not won equivalent military renown that could have bolstered his reputation. Although he fought in the Battle of Nájera (1367), for example, his later military projects proved unsuccessful. When Edward III died in 1377 and John's ten-year-old nephew succeeded as Richard II of England, John's influence strengthened.
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