Almohad defeat at al-Buhaira
1131
Ibn Tumart's first major engagement with Almoravid forces was a bloody rout outside Marrakech. The Mahdi himself survived but died of grief and wounds shortly afterward. His lieutenant Abd al-Mumin would prove a more capable general and take over the movement. Abd al-Mumin concealed his leader's death for years, issuing orders in the Mahdi's name while methodically building the tribal coalition that would eventually overwhelm the Almoravids.
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