John Maynard Keynes

John Maynard Keynes, 1st Baron Keynes (CB, FBA), was a British economist particularly known for his influence in the theory and practice of modern macroeconomics.

Keynes married Russian ballerina Lydia Lopokova in 1925.

NB: Not to be confused with his father who also was an economist. See John Neville Keynes.