 The solutions adopted in the ornamentation of the Aljafería, such as the use of mixtilinear arcs and springers, the extension of arabesque in large area, and the schematisation and progressive abstraction of the yeserias of a vegetal nature, decisively influenced Almoravid and Almohad art in the Iberian Peninsula.The transition of the decoration towards more geometric motifs is at the basis of Nasrid art.After the reconquest of Zaragoza in 1118 by Alfonso I of Aragón, it became the residence of the Christian kings of the Kingdom of Aragón.