Yahya_al-Mu'tasim
Yahya al-Mu'tasim
Almohad rival caliph (died 1236)
Yahya al-Mu`tasim (Arabic: أبو زكرياء المعتصم يحي بن الناصر; Abū Zakarīyā' Al-Mu`taṣim Yaḥyā ibn An-Nāṣir; died 1236) was an Almohad rival caliph[1] who reigned from 1227 to 1229. He was a son of Muhammad al-Nasir[2] and brother of Yusuf II, Almohad caliph.