The ruler of the Karaman’s Ibrahim died in 1464 and his
successors had fallen into a throne struggle. At last, Ishak Bey accessed the throne by
the support of Uzun Hasan the ruler of the Akkoyunlu State. However, Pir Ahmed (brother of
Ishak) rejected Ishak’s accession and asked for an Ottoman support. Mehmet the
Conqueror helped Pir Ahmed and enthroned him by dethroning his brother Ishak. But, Pir
Ahmed made an agreement with the Venetians and ruined his relations with the Ottoman Empire.
Sultan Mehmed organised a campaign to the Karaman State immediately. He captured Konya and Karaman, the
people of these regions had immigrated to Istanbul. Pir Ahmed escaped to
Akkoyunlu State and the Akkoyunlu-Ottoman relations had ruined.
Akkoyunlu State was located in the Eastern Anatolia,
Caucasusia, Iran and Iraq. The Ottoman Empire’s land was on the West Anatolia and
Europe. On 11th August 1473 in Otlukbeli, two armies came across. The Ottoman Army was very
well organised and they had the most powerful weapons of the time. In few hours, the
Akkoyunlu Army was defeated and the Akkoyunlu threat had disapeared.