Mohammed Abdullah Hassan
Sayyid Mohammed Abdullah Hassan  (7 April 1856 – 21 December 1920, also known as Sayyid Maxamed Cabdulle Xasan) was the emir of Diiriye Guure. Diiriye Guure headed the successor state of the Dhulbahante garaadship.  Then, Diiriye Guure started the Dervish movement in Somalia and led the Khatumo region from 1896 until 1920.