[1] [2] It depicts Prince Frederick, Duke of York, the Commander in Chief of the British Army.

A royal duke, he was the second son of George III and younger brother of the Prince Regent.

He was forced to resign the command in 1809 due to accusations made by his former lover Mary Anne Clarke, but returned to the position two years later.

Today he is perhaps best known for his association with the nursery rhyme The Grand Old Duke of York which reputedly refers to his unsuccessful military command during the Flanders Campaign, twenty years before the portrait was painted.

Part of the Royal Collection, today it hangs in the Waterloo Chamber at Windsor Castle which commemorates those involved in the defeat of Napoleon.