Murad I (Turkish: I. Murad; 29 June 1326 – 15 June 1389) was the Ottoman Sultan from 1362 to 1389. He was a son of Orhan and the Valide Nilüfer Hatun. Murad I conquered Adrianople, renamed it to Edirne and in 1363 made it the new capital of the Ottoman Sultanate.Then he further expanded the Ottoman realm in Southeast Europe by bringing most of the Balkans under Ottoman rule, and forced the princes of northern Serbia and Bulgaria as well as the Byzantine emperor John V Palaiologos to pay him tribute. Murad I administratively divided his sultanate into the two provinces of Anatolia (Asia Minor) and Rumelia (the Balkans). Murad's death against the Serbs would cause the Ottomans to halt their expansion into the territory temporarily and focus their attention once more on the ailing Byzantine Empire.

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