. . "1422"^^ . . . . . "The first full-scale Ottoman Siege of Constantinople took place in 1422 as a result of the Byzantine Emperor Manuel II's attempts to interfere in the succession of Ottoman Sultans, after the death of Mehmed I in 1421. This policy of the Byzantines was often used successfully in weakening their neighbours. When Murad II emerged as the winning successor to his father, he marched into Byzantine territory. The Turks had acquired their own cannon for the first time by the siege of 1422, \"falcons\", which were short but wide cannon. The two sides were evenly matched technologically, and the Turks had to build barricades \"in order to receive\u2026 the stones of the bombards.\" The Byzantine defenders won the battle. Contemporary Byzantine tradition ascribed the deliverance of Constantinople to a miraculous intervention by the Theotokos."@en . . "the Rise of the Ottoman Empire and Byzantine-Ottoman wars."@en . "Constantinople in 1422; the oldest surviving map of the city."@en . . "Siege of Constantinople"@en . "Byzantine Victory"@en . . . . . . "Constantinople"@en . . . . "John VIII Palaiologos de facto co-emperor with his retired Father Manuel II Palaiologos"@en . . "The first full-scale Ottoman Siege of Constantinople took place in 1422 as a result of the Byzantine Emperor Manuel II's attempts to interfere in the succession of Ottoman Sultans, after the death of Mehmed I in 1421. This policy of the Byzantines was often used successfully in weakening their neighbours. The Byzantine defenders won the battle. Contemporary Byzantine tradition ascribed the deliverance of Constantinople to a miraculous intervention by the Theotokos."@en . . . "Siege of Constantinople (1422)"@en . .