Established: 1909 AD/CE
Disestablished: 1930 AD/CE
The Idrisid Emirate of Asir (Arabic: الإمارة الإدريسية) was a state located on the Arabian Peninsula. The Emirate was located in the geographical region of Jizan in what is now southwestern Saudi Arabia. The authority of the Emir was restricted to a strip of the Tihamah some 80 mi (129 km) long and extending about 40 mi (64 km) inland to the scarp of highland Asir, with Sabya as its capital and Jizan and Midi as ports.
The Emirate was established by Muhammad ibn Ali al-Idrisi in rebellion against the Ottoman Empire. It gained the support of Great Britain during the First World War, and flourished until the death of Sayyid Muhammad in 1920. Following the collapse of the Ottoman Empire in 1918, the emirate expanded its domains, reaching as far as Hudaydah. In 1925, Hudaydah was captured by the Mutawakkilite Kingdom of Yemen.
It was gradually absorbed into the state of the Kingdom of Hejaz and Nejd and formally annexed by its successor, Saudi Arabia, under the Treaty of Taif in 1934.