Built by the Augustinian canons in the 12C, the church is the last remaining vestige of this complex intended to house pilgrims on their way to Compostela. The compact Romanesque-inspired edifice is a rare example of Spanish-Moorish art north of the Pyrenees. The four buildings of its Greek cross floorplan abut the central tower. Inside, the transept crossing is covered by a lovely eight-sided dome with star-shaped ribbing.