Thomas, Loud Cochrane, tenth Earl of Dundonald, was born at Annsfield, in Lanark, on the 14th of December, 1775, and died in London on the 31st of October, 1860. Shortly before his death he wrote two volumes, styled "The Autobiography of a Seaman", which set forth his history down to 1814, the fortieth year of his age. To those volumes the present work, recounting his career during the ensuing six-and-forty years, is intended to serve as a sequel. Before entering upon the later narrative, however, it will be necessary briefly to recapitulate the incidents that have been already detailed. The Earl of Dundonald was descended from a long line of knights and barons, chiefly resident in Renfrew and Ayr, many of whom were men of mark in Scottish history during the thirteenth and following centuries. Robert Cochran was the especial favourite and foremost counsellor of James III. , who made him Earl of Mar; but the favours heaped upon him, and perhaps a certain arrogance in the use of those favours, led to so much opposition from his peers and rivals that he was assassinated by them in 1480.