Also my favorite fact from the books is that it was Pongo and a dog called Missus as the parents.
Perdita was a stray they found (with brown spots btw) to take in as a nursemaid since 15 pups is a lot.
Why was there a random milk producing stray on the street? because Cruella got her puppies before Pongos, and in the end she got reunited with her pups, which is a really sweet side arc.
I dont remember what happened to Perditas husband or if it was even mentioned, but i do really like the dynamic of 3 adults.
Oh also Perdita like, means lost in French or something.