Sunbul Sinan Efendi (Yusuf Sinaneddin), pir of the Sünbüliyye branch of the Halveti order; a disciple of Cemal-i Halveti, he became head sheikh of the Koca Mustafa Pasha lodge. He died in 1529 and is buried in his tomb at Kocamustafapaşa. (Sources: TDV.)