SEBASTIAN, Sr. a handsome, populous, and strong town of Spain, in the province of Guipuscoa, with a good and well-frequented harbour. It is seated at the foot of a mountain; and the harbour secured by two moles, and a narrow entrance for the ships. The town is surrounded with a double wall, and to the sea-side is fortified with bastions and half-moons. The streets are long, broad, and straight, and paved with white flag-stones. At the top of the mountain is a citadel, with a garrison well-furnished with cannon.
Sebastian, The town carries on a considerable trade, the greatest part of which consists of iron and steel, which some reckon to be the best in Europe. They also deal in wool, which comes from old Castile. W. Long. 1. 59. N. Lat. 43. 23. The capital of Brasil in South America is likewise called Sebastian.