The kittens from the B-litter got their names after characters from literature (Beatrice existed in real life too, and was Dante’s muse). The girls are all named after various beauties.
Belle, from Beauty and the Beast
Bastian Balthazar Bux, the boy from The Neverending Story.
Beatrice, the muse of the poet Dante Alighieri
Blanche, a character from A Streetcar Named Desire