Joan of Navarre, Queen of England
Joan of Navarre, also known as Joanna ( – 10 June 1437) was Duchess of Brittany by marriage to Duke John IV and later Queen of England as the second wife of King Henry IV. She served as regent of Brittany from 1399 until 1403 during the minority of her son. She also served as regent of England during the absence of her stepson Henry V in 1415. Four years later he imprisoned her and confiscated her money and land. Joan was released in 1422, shortly before Henry V's death. Joan was a daughter of Charles II of Navarre and Joan of France. Duchess of Brittany On 2 October 1386, Joan married her first husband, Duke John IV of Brittany (known in traditional English sources as John V). She was his third wife and the only one with whom he had children. John IV died on 1 November 1399 and was succeeded by his and Joan's 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, King Henry IV of England proposed to marry her. The marriage proposal was given out of mutual personal preference