CASTRO, the capital of the island of Chiloe, on the coast of Chili, in south America: W. long. 82°, S. lat. 43°.
CASTRO is also the capital of a duchy of the same name in the pope's territories, in Italy, situated on the confines of Tuscany: E. long. 12° 35', N. lat. 42° 30'.
CASTRO is likewise a town in the territory of Otranto, in the kingdom of Naples, about seven miles south of Otranto: E. long. 19° 25', N. lat. 40° 8'.