It is home to the Romanesque church of San Nicola.
Ecclesiastical history
In 1110 was established a bishopric of Ottana (Italiano) or Othana in Latin.
On 1503.12.08 it was suppressed and its territory reassigned to establish the Diocese of Alghero.
uncanonical Giovanni Lavoratore, Friars Minor (O.F.M.) (1386.04.16 – ? without papal mandate)
Domenico (1386.05.26 – ?)
Giovanni (1388.06.26 – ?)
Nicola (1389.09.03 – 1400.06.14), later Bishop of Sorres (1400.06.14 – ?)
uncanonical Gerardo di Bisarchio (Gérard de Gisors), Carmelite Order (O. Carm.) (1390.11.21 – 1402.08.28), later Bishop of Bethléem à Clamecy (Burgundy, France) (1402.08.28 – death 1403), neither see under papal mandate
Giovanni de Sallinis, O.F.M. (1454.05.31 – 1471.06.17), later Bishop of Bosa (Italy) (1471.06.17 – death 1484)
Antonio di Alcala (1472.08.25 – death 1472)
Gerolamo di Setgi, O.F.M. (1474.09.08 – death 1475)
Ludovico Camagni, O.F.M. (1481.02.07 – death 1483)
Domenico di Milia (1483.09.11 – ?)
Giovanni Perez (1501.07.23 – death 1503)
Titular see
Only in October 2004 it was nominally restored as Latin Titular bishopric of the lowest (Episcopal) rank, named Ottana (in Curiate Italian) or Othana in Latin.