Duke of Aquitaine to the Crown. Regardless, due to Henry Bolingbroke's seizure of the crown, he still came into possession of the dukedom. Henry V continued to rule over Aquitaine as King of England and Lord of Aquitaine. He invaded France and emerged victorious at the siege of Harfleur and the Battle of Agincourt in 1415. He succeeded in obtaining the French crown for his family by the Treaty of Troyes in 1420. Henry V died in 1422, when his son Henry VI inherited the French throne at the age of less than a year; his reign saw the gradual loss of English
Succession to the British throne Ireland. She was not universally recognised and after nine days she was overthrown by the popular Mary. As Henry VIII's will had been approved by an Act of Parliament in 1544, Edward's contravening will was unlawful and ignored. Mary was succeeded by her half-sister, Elizabeth, who broke with the precedents of many of her predecessors, and refused to name an heir. Whilst previous monarchs (including Henry VIII) had specifically been granted authority to settle uncertain successions in their wills, the Treasons Act 1571 asserted that Parliament had the right to settle disputes, and made it treason to deny Parliamentary authority.