The Ghurids or Ghorids (Persian: سلسله غوریان‎‎; self-designation: شنسباني, Shansabānī) were a dynasty of Eastern Iranian descent (presumably Tajik, but the exact ethnic origin is uncertain), from the Ghor region of present-day central Afghanistan. The dynasty converted to Sunni Islam from Buddhism, after the conquest of Ghor by the Ghaznavid emperor Mahmud of Ghazni in 1011. Abu Ali ibn Muhammad (reigned 1011–1035) was the first Muslim king of the Ghurid dynasty to construct mosques and Islamic schools in Ghor.