Yusuf I, Almohad caliph (born 1135)

Abu Yaqub Yusuf

Second ruler of Almohad dynasty (r. 1163–1184)

Abu Ya‘qub Yusuf or Yusuf I was the second Almohad Amir or caliph. He reigned from 1163 until 1184 in Marrakesh. He was responsible for the construction of the Giralda in Seville, which was part of a new grand mosque. He was a keen student of philosophy and patron of Averroes.