What is on the papers does not have to bear any relationship to what name you call them by. Often they are #III or IV etc.
2 from our litter are Buford P’s Boy, called Kato, since he had such a nice black mask.( BufordP was the Father and was named for FReeper Buford P) and Doc ( named for Doctor Raoul, another FReeper) Only one girl and breeder wanted to keep her. Mother was Daisy. Wonder if the daughter was Tulip, Petunia, Rosie? LOL
Currently I have a cat with a semi-pronounceable formal name yet is called by several other nicknames, all of which he knows. My dearly departed dog never heard his official name and was perfectly happy with that.