3697382 Cambridge House in Piccadilly in 1860, home of PM lord Palmerston, 19th century by Unknown Artist, (19th century); Private Collection; (add.info.: This grade I listed townhouse designed by Matthew Brettingham and constructed on the northern side of Piccadilly in Mayfair for Sir Charles Wyndham, Second Earl of Egremont became the residence of British statesman and Prime Minister Lord Palmerston (1784??865) from 1885-65 before becoming the home of the Naval and Military Club, known colloquially as the In and Out Club. The construction of the four storey Cambridge House at 94 Piccadilly was from); Peter Newark Pictures; out of copyright.