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Battle of Kosmidion

Battle of Kosmidion
Part of Ottoman Interregnum
Date15 June 1410
Kosmidion (modern Eyüp), just outside Constantinople
Result Victory for Süleyman Çelebi[1]
Forces of Süleyman Çelebi and Vuk Lazarević Forces of Musa Çelebi and Stefan Lazarević
Commanders and leaders
Süleyman Çelebi
Vuk Lazarević
Musa Çelebi
Stefan Lazarević
unknown unknown

The Battle of Kosmidion (Turkish: Eyüp Muharebesi), fought on 15 June 1410, occurred during the Ottoman Interregnum and was fought between the forces of the brothers and princes Musa Çelebi and Süleyman Çelebi, at Kosmidion just outside the land walls of Constantinople. During the battle, some of Musa's vassals, including Vuk Lazarević (the brothers' half-uncle), deserted him and joined Süleyman.[2] The battle ended in a victory for Süleyman Çelebi.[3]


  1. ^ International encyclopaedia of Islamic dynasties, Ed. Nagendra Kr Singh, (Anmol Publications, 2005), 639.
  2. ^ Kastritsis, 150.
  3. ^ Kastritsis, 149.