Abu-l-Qasim Ahmad ibn al-Husayn ibn Qasi

Abu'l- Qasim Ahmad ibn al -Husayn ibn Qasi († 1151 ), usually known just as Ibn Qasi or Ibn Kasi, was a Moorish Sufi mystic and of Silves in the southwest of al -Andalus, today's Portugal's Algarve.

Al - Muridun

Ibn Qasi was a disciple of the Sufi Ibn al - Arif (1088-1141) and, together with Abu- l - Walid Muhammad Ibn al - Mundhir Ibn Qasi was the founder of the religious movement of al - Muridun that from 1144 in an uprising the rule the Moroccan -Berber Almoravids shook off. In his name Ibn al- Mundhir tore the rule of Silves itself. 1145 dominated Ibn qasis militias and allies of the region around Évora, Beja and Huelva. After the coup d'etat taking Mértola some governors Andalusian Ibn Qasi joined, such as Abu Muhammad Ibn Wazir Sidray of Beja and Yusuf Ibn Ahmad al - Bitruyi of Niebla. They set up an independent Imamate with Ibn Qasi at the top, which extended rapidly via Badajoz. Your attempt to Sevilla failed, however, Sidray then left the murids. Against the Almoravids and the power vacuum also advancing Portuguese they called the Almohads to help and support them in their landing in Andalusia.

The alliance between the religiously intolerant sect of the Almohads and Ibn qasis mystic movement, however, was marked by mutual distrust. After defeating the Almoravids and the aspiring also for mastery of the Algarve Emir of Badajoz Ibn Qasi therefore began in 1150 with Portugal's King Alfonso I. secret negotiations for an alliance against the Almohad Sultan Abd al - Mu'min. His followers learned of it, however, and beat him to death as a traitor. Ibn al - Mundhir handed Silves, Algarve Mértola and the rest of the Almohads.