Founder of the Khalidiyya branch of the Naqshbandi order, a great Sufi whose influence spread from Iraq and Syria to Anatolia. Born in Sulaymaniyah, he received ijaza from Shah Abdullah al-Dihlawi in India, then settled in Damascus. He died of plague in Damascus on 9 June 1827 and was buried on the slopes of Mount Qasiyun. (Sources: TDV 'Hâlid el-Bağdâdî'; Encyclopaedia Iranica.)