Nûre Sûfi Bey (Turkish: Nureddin Bey) was the predecessor of Karamanid dynasty, a Turkish dynasty which ruled part of Anatolia in the 14th and 15th centuries as a rival of the Ottoman Empire. He was the son of Hodja Sad al-Din (Turkish: Hoca Sadeddin) who had come from Arran, staying for some years near Sivas.
This, when generalized, is a reference to the actual migrations brought about by Khwārizmian and Mongol pressure, and moreover it suggests some perceptible connection, if not precisely with Baba Ishak, at least with circles influenced by religious influence of that kind - there is a reference to a Khorasanian Șūfī, Baba Ilyās, with whom both Nûre Sûfi and Baba Ishāq are said to have been in touch - and also to the fact that the first chiefs who brought in these Turkmens were equally leaders in the field of religion.
Nure Sofi was a member of Afşar tribe of Turkmens. Originally living in West Turkmenistan (i.e., modern Balkan Province) the tribe moved west to Anatolia in 1228 probably to escape from the invading Mongols. They were welcomed by Alaattin Keykubat I of Seljuks of Turkey and they were settled around Ermenek (now a district in Karaman Province) Nure Sofi's original position in the tribe is not known. According to some he was dealing with coal trade between Ermenek and the Seljuk cities to the north But he soon proved himself as a leader during Babai Revolt in which he was the partisan of Baba İshak. He also captured many small settlements around Ermenek to form the core of the future Karamanoğlu Beylik.