Spanish privateer St. Bernardo or El Conquestador captured by British in 1797

St. Bernardo also known as El Conquestador, armed with 12 guns and 75 men, captured by the Boston (32 guns), commanded by J.N. Morris, off the coast of Portugal 16 June 1797

Source
The Naval Gazetteer, published by J.W. Norris&Co., 1827.