Manuel III Megas Komnenos (December 16, 1364 – March 5, 1417) is Emperor of Trebizond from March 20, 1390 to his death in 1417.
The major event of Manuel's reign is the arrival of the Central Asian conqueror Tamerlane to Anatolia.
This leads to the destruction of the Ottoman Empire in the Battle of Ankara, which had threatened the existence of Manuel's domain.
Although the Ottomans reconstitute their state after ten years of civil war, this defeat extendsthe life and security of the Empire of Trebizond for several more decades.