[2][3] By the end of fourteenth century Timur and Bayezid I had emerged as two superpowers in Asia and Europe, making the confrontation between two a matter of time.

At the same time two princes, Ahmad Jalayir (Jalayirids) and Kara Yosuf (Qara Yusuf) sought for protection at Bayezid I's court.

At this point his son-in-law Amir Sultan advised him against the move knowing well the penchant and proficiency of Timur and his soldiers in a battlefield.

Although Bayezid I had made a fierce reputation in Europe as a brilliant general and ferocious warrior but he was no match for Timur whose years in battlefield far exceeded Bayazid's age.

The Timurid attack was ruthless and merciless and in one word, Timur “annihilated” the Ottoman army, taking Bayezid I, his children and princes as captives.

It might have been this decision coupled with the fact that his family was regarded as mentors by the Timurid dynasty which meant he did not share the same fate as his in-laws.