Fakhr al-Din Qutlugh-bey (Azerbaijani and Persian: فخر الدین قتلغ بیگ; died 1389) was the second Aq Qoyunlu bey, ruling from 1362-1389.
[3] In 1379, he sent his oldest son, Ahmad, to Erzincan to assist Mutahharten against the military incursions of the Eretnids under sultan Ala al-Din Ali.
[3] Qutlugh focused his main efforts on transforming the tribal union into a more solid state formation.
Then Qutlugh made an alliance with the Central Asian commander Tamerlane, who set out on Tabriz and Azerbaijan.
[3] After that, a power struggle began between his sons Osman and Ahmad, which was joined by another brother, Pir Ali.