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.
Alice Perrers had no children. Though Perrers was given many gifts and land grants from Edward, her financial success was largely earned. Some contemporaries claimed that she had seduced a senile king to gain property and goods, but most of her acquisitions were owed to her intelligence, business acumen, and use of contacts, and she became a wealthy landowner. So successful was she that at the height of her power she controlled 56 manors, castles and town houses stretching over 25 counties of England from the north to the home counties. Only 15 of these were gifts from Edward. Among other properties,