Abu'l-Hasan al-Hasan ibn Ali

Al-Hasan succeeded his father, Ali ibn Yahya, upon the latter's death in 1121.{{sfn|Tibi|2002|p=514}} Reduced to the coasts of modern Tunisia, during his reign, the Zirid emirate faced the increasingly threatening attacks of the Italo-Norman Kingdom of Sicily. The Normans were provoked largely by Almoravid attacks on their shores, but blamed them on the Zirids, as al-Hasan's father had requested Almoravid aid against Sicily.{{sfn|Tibi|2002|p=514}} In the fall of 1135{{cite book |last1=Hadi |first1=Roger Idris|title=

La Berberie Orientale Sous les Zirides |date=1962 |url=https://www.asadlis-amazigh.com/fr/wp-content/uploads/livres/La%20berberie%20orientale%20sous%20les%20Zirides%201.pdf|pages=345}}, the Normans occupied Djerba, and finally targeted the Zirid capital of al-Mahdiya itself in 1148.{{sfn|Tibi|2002|p=514}} With his state's economy already in decline, and weakened further by drought and famine, al-Hasan was unable to resist the Norman attack, fleeing instead to the Hammadids in Algiers.{{sfn|Tibi|2002|p=514}}

The Hammadids also attacked Mahdia in the summer of 1135. {{cite book |last1=Hadi |first1=Roger Idris|title=

La Berberie Orientale Sous les Zirides |date=1962 |url=https://www.asadlis-amazigh.com/fr/wp-content/uploads/livres/La%20berberie%20orientale%20sous%20les%20Zirides%201.pdf|pages=342}}

There he remained under virtual house arrest until 1152, when the Almohad Caliphate under Abd al-Mu'min captured Algiers. Brought to the Almohad capital of Marrakesh, al-Hasan urged the Almohads to reconquer Ifriqiya. An Almohad expedition indeed expelled the Normans from al-Mahdiya in 1160, but al-Hasan was only allowed to settle in its extramural quarter of Zawila.{{sfn|Tibi|2002|p=514}} He remained there until the death of Abd al-Mu'min in 1167, when he was ordered to return to Marrakesh, but died on the way at Tamasna.{{sfn|Tibi|2002|p=514}}

• Mahdia campaign of 1123

{{reflist|30em}}

• {{EI2 |title= Zīrids |first=Amin |last=Tibi |volume=11 |pages=513–516 |doi=10.1163/1573-3912_islam_SIM_8170}}

{{s-start}}

{{s-bef|before=Ali ibn Yahya}}

{{s-ttl|title=Zirid emir of Ifriqiya|years=1121–1148}}

{{s-non|reason=Sicilian conquest}}

{{s-end}}

{{DEFAULTSORT:Hasan ibn Ali}}

Category:1109 births

Category:1167 deaths

Category:Zirid emirs of Ifriqiya

Category:12th-century Berber people

Category:12th-century monarchs in Africa

Category:12th-century people from Ifriqiya