Kammala jumla mai zuwa: A karkashin wanda ya kafa shi, Osman I, Beylik na Osmanoğlu ya faɗaɗa a kan kuɗin Byzantine kudu da yammacin Tekun Marmara a farkon shekarun karni na 14. Tare da haɗarsu da maƙwabta Beylik na Karasi da ci gaban su a cikin Roumelia daga 1354, ba da daɗewa ba suka zama masu ƙarfi don fitowa a matsayin manyan abokan hamayyar Karamanids, waɗanda a wancan lokacin ana tunanin su ne mafi ƙarfi. Zuwa ƙarshen karni na 14, Ottomans sun ci gaba zuwa cikin Anatolia ta hanyar sayen garuruwa, ko dai ta hanyar siyan su ko ta hanyar kawancen aure. A halin yanzu, Karamanids sun kai wa Ottomans hari sau da yawa tare da taimakon wasu beyliks, Mamluks, Aq Qoyunlu ("White Sheep Turkomans"), Byzantines, Pontics da Hungarians, sun kasa kuma sun rasa iko a kowane lokaci. A ƙarshen ƙarni, shugabannin Ottoman na farko sun ci nasara da manyan yankuna daga Karamanids da sauran beyliks marasa daraja. Wadannan suna da ɗan gajeren lokaci lokacin da aka mayar da yankunansu zuwa gare su bayan da Ottoman ya ci nasara a kan Tamerlane a 1402 a cikin
Yaƙin Ankara.