Ferdinand IV of Naples (1751-1825) liked to wait until the end of each meal before announcing the call of nature. He then insisted on taking his fellow-diners with him.
Those acts and functions which are never mentioned in England and which are there studiously concealed, even by the vulgar, here are openly performed. When the King has made a hearty meal, and feels an inclination to retire, he commonly communicates that intention to the Noblemen around him in waiting, and selects the favoured individuals, whom, as a mark of predilection, he chooses shall attend him… The persons thus preferred, then accompany his Majesty, stand respectfully round him, and amuse him by their conversation, during the performance.
(Sir Nathaniel Wraxall – Historical Memoirs 1815)