Napoleon was also defeated and sent to elba, escaped, came back, again defeated at waterloo, sent forever to saint helena.....that does not make him any less of an emperor or conqueror. same is the case with bayezid.
Plz read history rather than arguing,
he was not much of a ruler to begin with as he left most of the decision making to his wazirs/governors, who wrecked havoc.
He did defeat the cruisders but that was more thanks to over zealous bumbling French.
His defeat against Taimur was complete and total so much so that due to the utter humiliation he committed suicide.
He was allegedly chained, and forced to watch how his beloved wife,
Olivera, served Timur at dinner.
a description of the public humiliation of Bayezid's wife:
“He had a wife of Ildrim [Yıldırım, i.e., Bayezid], who was also a captive. They ripped off her clothes to the navel, exposing shameful areas. And he (Timur) made her serve food to him and his guests like that.
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According to a legend, Timur took Bayezid with himself everywhere in a barred
palanquin or cage, humiliating him in various ways, used Bayezid as a support under his legs, and at dinner had him placed under the table where bones were thrown at him.
Due this defeat the otoman empire would spiral into violence for more than a decade.