renunciation with the French King. In 1369 Edward III resumed the title, claiming that the French had breached their treaty. Henry V invaded France, but agreed to the Treaty of Troyes, whereby he was recognised as the Heir and Regent of France, in 1420. He died in 1422, to be succeeded by his infant son, who became Henry VI. Shortly after his accession, Henry VI also inherited the French throne. By the 1450s, however, England had lost all its territories in France, with the exception of Calais. The claim to the title of "King of France" was nonetheless not relinquished until the creation of the United Kingdom of Great Britain and Ireland in 1801, by which time the French monarchy had been overthrown by the French Revolution. After 1422, the royal style remained unchanged for almost a century. Numerous amendments, however, were effected during Henry VIII's reign. After Henry wrote a book against the Protestant Martin Luther, Pope Leo X rewarded him by granting the title "Defender of the Faith". After disagreements with the Papacy over his marriage to Catherine of Aragon, Henry VIII broke away from the Roman Catholic Church, establishing the Church of England in 1533. Pope Paul III rescinded the grant of the title "Defender of the Faith", but Henry continued to use it. In 1535 Henry added "of the Church of England in Earth, under Jesus Christ, Supreme Head" to his style in 1535; a reference to the Church of Ireland was added in 1536. Meanwhile, advised that many Irish people regarded the pope as the true temporal authority in their nation, with the king of England acting as a mere representative, Henry VIII changed "Lord of Ireland" to "King of Ireland" in 1542. All changes made by Henry VIII were confirmed by an English Act of Parliament passed in 1544. Mary I, Henry VIII's Catholic daughter, omitted "of the Church of England and also of Ireland in Earth Supreme Head" in 1553, replacing it with "etc.", but the phrase remained part of the official style until an Act of Parliament to the contrary was passed in 1555. In the meantime Mary had married the Spanish prince Philip. The monarchs adopted a joint style, "King and Queen of England and France, Naples, Jerusalem and Ireland, Defenders of the Faith, Princes of Spain and Sicily, Archdukes of Austria, Dukes of Milan, Burgundy and Brabant, Count and Countess