A twofer. First up, the New York Post, September 13, 2022
From pampered prince to coddled king.
Although he was just named Britain’s ruling monarch last weekend, Charles III has been living like a king his whole life.
King Charles was reportedly nicknamed the “pampered prince” by his staff at Clarence House, where he lived with his wife Queen Consort Camilla from 2003 until he recently took the throne.
Details of the former Prince of Wales’ lavish requests were revealed in the 2015 Amazon Prime documentary “Serving the Royals: Inside the Firm.”
Paul Burrell, who served as a butler to Queen Elizabeth and Princess Diana, revealed the precise directions the king’s staff are given to care for him, from ironing his shoelaces to putting toothpaste on his toothbrush.
“His pajamas are pressed every morning, his shoelaces are pressed flat with an iron, the bath plug has to be in a certain position, and the water temperature has to be just tepid,” in a bathtub filled “only half full,” Burrell said.
The king even “has his valets squeeze one inch of toothpaste onto his toothbrush every morning.”
After getting ready, King Charles’ strict morning routine is continued with his breakfast.
“Prince Charles has a healthier option. He’d have homemade bread, a bowl of fresh fruit, fresh fruit juices,” said chef Graham Newbould, a former member of the royal staff.
“Wherever the prince goes in the world, the breakfast box goes with him. He has six different types of honey, some special mueslis, his dried fruit and anything that’s a bit special that he is a bit fussy about.”....
....MUCH MORE
And the reason for the query in the headline, from Messy Nessy Chic, March 17:
The Toilet Duty Dukes and Duchesses of England
Those precious moments of alone time in the bathroom are priceless to many of us, and yet strangely enough, it was one of the few luxuries the King and Queen of England could not afford. Until as recently as the 20th century, the British monarchy appointed what was known as the “Groom of the Stool”, a courtier responsible for assisting them in the performance of “bodily functions of excretion and ablution”. And this wasn’t the role of any ordinary household servant. The appointment was offered to Dukes and Duchesses, Earls and Lords, Count and Viscounts– even future Prime Ministers of England, who willingly took a job that more or less entailed wiping the King’s bottom…
Above left: John Stuart, Prime Minister of Britain and Groom of Stole to George III; Right: Lionel Sackville, 1st Duke of Dorset, Groom to George I.
....MUCH MORE
In some areas of the U.S. a human stool is known as a "dookie" but I'm not sure of the etymology. Probably not derived from 'Duke'.
See also: the album by Green Day, ref. #3