Murad I
 Murad I  (nick-named 
Hüdavendigar, the God-like one) was the ruler of the 
Ottoman Empire from 
1359 to 
1389. He established the Empire by building up a society and government in the newly conquered city of Adrianople (which Murad renamed 
Edirne) and by expanding the realm in 
Europe, bringing most of the 
Balkan under Ottoman rule and forcing the 
Byzantine emperor to pay him tribute. It was Murad who changed the 
Osmanli tribe into an empire. He established the title of 
sultan in the 
1380s and the institutions of the 
Janissaries and the 
devşirm; the government of the 
divan; and the military judge, the 
kaziasker. Murad was assassinated by 
Milosh Obilich, a 
Serbian noble, during the 
Battle of Kosovo.