In 1402 Turkic warlord
Timur invaded Anatolia and defeated Bayezit in the
battle of Ankara. During the chaos following the battle (
Ottoman Interregnum), Mahmut Bey continued as an ally of the Ottomans. However, during the revolt of
Küçük Mustafa (the brother of
Murat II), he supported Küçük Mustafa and killed Mihaloğlu Mehmet a descendant of
Köse Mihal and a partisan of Murat II in 1423. But after the battle, he was killed by his soldiers. He had two sons; Hüsamettin Hasan and Hüsamettin Mehmet Yavuz. Although the brothers tried to continue in
Samsun and
Çarşamba, their beylik soon ceased to exist in about 1428. ==References==