A naval commander, born in Genoa, of noble descent, though his parents were poor; a man of patriotic instincts; adopted the profession of arms at the age of 19; became commander of the fleet in 1513; attacked with signal success the Turkish corsairs that infested the Mediterranean; served under Francis I. to free his country from a faction that threatened its independence, and, by his help, succeeded in expelling it; next, in fear of the French supremacy, served, under Charles V., and entering Genoa, was hailed as its liberator, and received the title of "Father and Defender of his country"; the rest of his life, and it was a long one, was one incessant wrestle with his great rival Barbarossa, the chief of the corsairs, and which ended in his defeat (1466-1560).