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Kara Koyunlu was created in 1375.
Kara Koyunlu ended in 1468.
Hasan Ali - Kara Koyunlu - died in 1468.
Thomas Alexander Sinclair has written:
'The government of the Van region under the Kara Koyunlu'
From Answers.com: Hasan 'Ali was the last ruler of the Kara Koyunlu Turkmen tribal federation, ruling for just one year from 1467-68.