Beefeater
Although the Yeomen Warders are often referred to as Yeomen of the Guard, which is a distinct corps of Royal Bodyguards of the British monarch, they are in fact a separate entity within this guard. Gilbert and Sullivan's opera, "The Yeomen of the Guard" (1888), is set in the 16th century, an earlier era before the two corps were split apart; it concerns what are today the Yeomen Warders.