That fabulous corte di Versailles not shine for hygiene and cleanliness is a fact historically established (you see https://www.pilloledistoria.it/10148/storia-moderna/servizi-igienici-versailles-bellissimi-inutili), but even there you could wash for the first time in seven years played, unbelievable.
Yet it is so, since this is what happened to the then future King of France Luigi XIV.
We know with certainty thanks to reports from the monarch's personal physician in his diary, which notes:
“Today His Majesty took the first bath“.
Practically, an extraordinary event: at that time the royal scion had, precisely, seven years (Photo gives: guidasicilia.it).