Castle of la Règola Monument · Àger, Noguera, Lleida Image of Àger, not of the place itself. Castle of which no visible remains survive: Arnau Mir de Tost and his wife Arsenda donated the village of la Règola to Sant Pere d'Àger in 1049 and the castle in 1067. La Règola was an independent municipality until the mid-19th century, when it was merged into Àger. Photo: Isidre blanc (CC BY-SA 4.0) What to see and do in Àger