Castle-Commandery of Alguaire Monument · Alguaire, Segrià, Lleida The Castell-comanda d'Alguaire was an Andalusi fortification (suda) reconquered by Ermengol VI of Urgell between 1145 and 1147, in the municipality of Alguaire, in the Segrià comarca (Lleida). In 1149 Ramon Berenguer IV began the donation of the territory to the Order of the Hospital of St John of Jerusalem, which in 1186 obtained full control of the castle in exchange for other lands ceded by King Alfonso the Chaste. In 1250 a hospitaller convent was founded there, and in 1319, when the commandery was incorporated into the Priory of Catalonia, the barony of Alguaire was created. Today only remains of the wall, a square tower and the old church of Santa María survive, on a site excavated by the University of Barcelona. Photo: Deosringas (CC BY-SA 3.0 es) What to see and do in Alguaire