I'm not sure where I'd find a princess hen that wasn't related to Dweezil. His breeder lives in California but comes to all our bird marts. He has a LOT of different species, and doesn't keep track of the breeding records too carefully. I'd need to find somebody else breeding princess parrots who didn't get their breeding stock from him. This is just part of his display. You can see a normal princess parrot in the middle of the second picture. I think the white birds to the left are also princess parrots. This breeder has the normal color, white mutation, and blue mutation.
The white mutation is a combination of blue (whiteface) and lutino, just like it is in all species. An interesting thing about princess parrots is that they only have the non-sexlinked lutino mutation, not the more common sex-linked lutino.

