Viscount Augustus Keppel oil on canvas 127 x 101.6cm (50 x 40in).
The present work is after the original in the National Portrait Gallery painted in 1779.
Augustus Keppel accompanied Nelson on his voyage round the world as commander of the Grand Fleet in 1778. He achieved historical fame for being unjustly court-martialled in connection with naval operations off the French coast. He later became first Lord of the Admiralty and Viscount.