2-587-856 - © Fine Art Images/Heritage Images

'Portrait of Prince Henry of Prussia', 18th century. Prince Henry of Prussia (1726-1802) was the younger brother of Frederick the Great. He was a successful general commanding Prussian armies in the Seven Years War. He also served as a statesman and diplomat and was proposed as a potential monarch or president of the United States. Found in the collection of the State Open-air Museum Palace Gatchina, St Petersburg.