Style of the British sovereign using the title in legal documents, he did not formally exchange letters confirming the 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
Rise of the Ottoman Empire the interregnum. When Mehmed died in 1421, one of his sons, Murad, became sultan. Murad II spent his early years on the throne disposing of rivals and rebellions, most notably the revolts of the Serbs. He also had problems at home. He subdued the rebels of his uncle Mustafa Çelebi and brother Küçük Mustafa. In 1422, Murad II laid siege to Constantinople for several months and lifted it only after forcing the Byzantine emperor, Manuel II Palaiologos to pay additional tribute. In 1422 the first regular war against Venice began with the Siege of Thessalonica (1422–30). Byzantine involvement in the