Halil Bey

Halil Bey (c. 1347–1362) was an Ottoman prince, the only son of Sultan Orhan by his Byzantine wife Theodora Kantakouzene. In 1357 pirates seized him near İzmit and carried him to Phocaea, where he was held for a ransom of a hundred thousand hyperpyra.

Orhan paid the ransom in 1358 and promised to end his raids on Byzantine lands. In 1359 Halil married his cousin Irene, daughter of Emperor John V Palaiologos. After Orhan's death, his half-brother Murad I had him executed in 1362.