Abul-Hasan al-Hasan ibn Ali () (also known as "Al-Hassan ibn Ziri"; 1109–1171) was the last ruler of the

Zirid dynasty The Zirid dynasty ( ar, الزيريون, translit=az-zīriyyūn), Banu Ziri ( ar, بنو زيري, translit=banū zīrī), or the Zirid state ( ar, الدولة الزيرية, translit=ad-dawla az-zīriyya) was a Sanhaja Berber dynasty from ...

in Ifriqiya (1121–1152). He succeeded Ali ibn Yahya. Under his reign, piracy became an important source of income, although this destabilised relationships with Christian maritime interests. In order to secure trade in the

Mediterranean The Mediterranean Sea is a sea connected to the Atlantic Ocean, surrounded by the Mediterranean Basin and almost completely enclosed by land: on the north by Western and Southern Europe and Anatolia, on the south by North Africa, and on th ...

he was forced to accept dependence on the Norman-controlled

Sicily (man) it, Siciliana (woman) , population_note = , population_blank1_title = , population_blank1 = , demographics_type1 = Ethnicity , demographics1_footnotes = , demographi ...

. Between 1146 and 1148 the Zirid realm collapsed, and Abul-Hasan lost all of his realm except for Algiers, until it in turn fell to the

Almohad Caliphate The Almohad Caliphate (; ar, خِلَافَةُ ٱلْمُوَحِّدِينَ or or from ar, ٱلْمُوَحِّدُونَ, translit=al-Muwaḥḥidūn, lit=those who profess the unity of God) was a North African Berber Muslim empire fo ...

. Abdul-Hasan lived in

Marrakesh Marrakesh or Marrakech ( or ; ar, مراكش, murrākuš, ; ber, ⵎⵕⵕⴰⴽⵛ, translit=mṛṛakc}) is the fourth largest city in the Kingdom of Morocco. It is one of the four Imperial cities of Morocco and is the capital of the Marrakes ...

until his death, securing some power of governance over

al-Mahdiya Mahdia ( ar, المهدية ') is a Tunisian coastal city with 62,189 inhabitants, south of Monastir and southeast of Sousse. Mahdia is a provincial centre north of Sfax. It is important for the associated fish-processing industry, as well as ...

References

*Giosuè Musca, ''Il mezzogiorno normanno-svevo e le crociate'', Centro di studi normanno-svevi, Università di Bari (p. 106) {{DEFAULTSORT:Abul-Hasan al-Hasan ibn Ali 1109 births 1171 deaths Zirid emirs of Ifriqiya People from Marrakesh 12th-century Berber people 12th-century rulers in Africa 12th-century people of Ifriqiya