Siege of Belgrade
Ali Bey Evrenosoğlu or Evrenosoğlu Ali Bey, known simply as Ali Bey, was an Ottoman military commander in the 15th century. He was one of the sons of Evrenos, an Ottoman general. During the 1430s he was sanjak-bey of the Sanjak of Albania who, after initial defeats, suppressed the Albanian Revolt of 1432–1436 with help of the forces commanded by Turahan Bey. In 1440 he participated in the unsuccessful Ottoman Siege of Belgrade.