OÑA. - A small town in the diocese and province of Burgos (Spain), seat of the monastery of St Saviour, founded in 1011 by the Count of Castile and his wife Doña Urraca.
King Sancho of Navarre brought the Cluniac Benedictines there. The best-known abbot was St Iñigo (Eneco), canonised at Oña by a faculty granted by Alexander III. The elegant Gothic baldachin was completed by Abbot Alonso of Madrid in 1508. In the artistic mausoleum located in the crossing of the monumental church lie the remains of four counts and four kings of Castile. Since 1880 the monastery of Oña has been run by the Jesuits with faculties in philosophy and theology. Among its teachers were Frs Antonio M. Arregui, Blas Beraza and Juan Urráburu, and it publishes Estudios Oníenses. - See pl. VII.