Asir

Imamate / emirate · 1907–1934

Type: Imamate / emirate
Existed: 1907–1934
Shown on the map: 1917–1923
Capital: Sabya
Peak area: ~96,000 km² (map figure)
Region: Middle East

Origins & rise

The emirate grew out of a Sufi revival. Its founder, Muhammad ibn Ali al-Idrisi (1876–1923), was the great-grandson of Ahmad ibn Idris, a Moroccan-born scholar who founded the Idrisiyya Sufi order and settled at Sabya in the Tihamah lowlands of southwest Arabia in 1828. Where his forebears had mediated tribal disputes, Muhammad turned religious prestige into political power. In the Asir region — nominally the Ottoman Sanjak of Asir within the Yemen Vilayet, but in practice ruled by tribal chiefs — he proclaimed himself Imam in December 1908, and by early 1909 the tribes of Sabya and the surrounding districts recognized him. Fighting the Ottomans from 1909, he won semi-independent status as kaymakam of Asir under the 1910 treaty of al-Hafa'ir, then resumed revolt, receiving Italian arms during the Italo-Turkish War.

History & key rulers

During the First World War al-Idrisi became Britain's first Arab ally against the Ottomans, signing a Treaty of Friendship and Goodwill with the Aden residency in April 1915 — the only wartime document to recognize his rule over Asir — and capturing the Farasan Islands with British-supplied weapons. After the 1918 Armistice of Mudros the emirate reached its greatest extent: Britain handed over Al Luhayyah (1919) and the great Yemeni port of Hodeidah (1921), stretching Idrisid control along the Tihamah coast from Birk to Hodeidah. Meanwhile a 1920 treaty with Ibn Saud partitioned Asir: the Saudis took the highland tribes (Qahtan, Shahran, Wadi'a, Rufayda) and Abha, while al-Idrisi kept the Tihamah. Muhammad died in 1923 (some sources say 1920); his son Ali (r. 1923–1926) was quickly squeezed between Imam Yahya's Yemen, which seized Hodeidah in 1924–25, and Saudi expansion. Under his brother al-Hasan (r. 1926–1934) the emirate became a protectorate of the Kingdom of Hejaz and Nejd on 20 November 1930, and after a failed Idrisid rebellion in 1932–33 it was formally annexed by Saudi Arabia under the 1934 Treaty of Taif.

Government, religion & culture

Asir was an Imamate in which the Imam held absolute temporal and legislative authority, advised by four ministers (wuzara') and a court of five qadis; a supreme court was created as the movement matured, and a Sudanese-staffed police force patrolled markets, morals, and prayer observance. Coffeehouses, dancing, and smoking were banned. The population of the Tihamah was largely Shafi'i Sunni with strong Sufi allegiances, in marked contrast to the Zaydi highlands of Yemen — a sectarian divide that fueled the chronic Idrisid–Yemeni wars of 1919–1925.

Peak & territory

At its 1921 height the emirate controlled an 80-mile coastal strip roughly 40 miles deep plus the Hodeidah extension and the Farasan Islands — about 96,000 km² by the map's reckoning.

Decline & legacy

Caught between Saudi Nejd-Hejaz, Hashemite ambitions, and Yemeni irredentism, the emirate was progressively partitioned: highlands to Ibn Saud (1920), Hodeidah to Yemen (1925), protectorate status (1930), annexation (1934). Its territories are today divided between Saudi Arabia's Asir, Jizan, and Najran provinces and Yemen's Hodeidah governorate.

Common questions

What was Asir?: The emirate grew out of a Sufi revival. Its founder, Muhammad ibn Ali al-Idrisi (1876–1923), was the great-grandson of Ahmad ibn Idris, a Moroccan-born scholar who founded the Idrisiyya Sufi order and settled at Sabya in the Tihamah lowlands of southwest Arabia in 1828.
When did Asir exist?: Asir existed 1907–1934. On this map it is drawn 1917–1923.
What was the capital of Asir?: Asir was ruled from Sabya.
How large was Asir at its height?: At its 1921 height the emirate controlled an 80-mile coastal strip roughly 40 miles deep plus the Hodeidah extension and the Farasan Islands — about 96,000 km² by the map's reckoning.
Who ruled Asir?: During the First World War al-Idrisi became Britain's first Arab ally against the Ottomans, signing a Treaty of Friendship and Goodwill with the Aden residency in April 1915 — the only wartime document to recognize his rule over Asir — and capturing the Farasan Islands with British-supplied weapons.
How did Asir end?: Caught between Saudi Nejd-Hejaz, Hashemite ambitions, and Yemeni irredentism, the emirate was progressively partitioned: highlands to Ibn Saud (1920), Hodeidah to Yemen (1925), protectorate status (1930), annexation (1934). Its territories are today divided between Saudi Arabia's Asir, Jizan, and Najran provinces and Yemen's Hodeidah governorate.
How was Asir governed?: Asir was an Imamate in which the Imam held absolute temporal and legislative authority, advised by four ministers (wuzara') and a court of five qadis; a supreme court was created as the movement matured, and a Sudanese-staffed police force patrolled markets, morals, and prayer observance.

Sources

Every source below was consulted while writing this entry.

Wikipedia — Emirate of Asir (Idrisid Emirate): en.wikipedia.org/wiki/Idrisid_Emirate_of_Asir
1922 Encyclopædia Britannica — "Arabia" (Wikisource): en.wikisource.org/wiki/1922_Encyclop%C3%A6dia_Britannica/Arabia
Wikipedia — Asir Province: en.wikipedia.org/wiki/Asir_Province

This entry was written from the sources above and last updated 10 September 2026.

This entry was researched and drafted with AI from the sources above, and has not been reviewed by a historian. How entries are made

Text available under CC BY-SA 4.0: reuse it with a credit to The World Through Time and a link to this page. Passages drawing on the Wikipedia articles listed above are also licensed CC BY-SA 4.0 by their contributors.

Border geometry for the map itself comes from Cliopatria v0.12 (Seshat Global History Databank, CC-BY-4.0).

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