BYB advised that I once attended a history lecture where it was revealed that a study of exchequer documents revealed the fact that in 1214 King John had exactly 4 baths. (This was at least 3 more than common people had in a lifetime.) If you wonder how this could be determined, it seems that he had to pay a fee to some court official who had the royal warrant or something on baths and there was a record in the Exchequer.
Well, they do say that cleanliness is next to godliness, and no would could ever accuse Richard's little brother Johnny of that.
Besides, he took a cold bath at Runnymede the next year.