YES, Friesians can have white and still be purebred and registered with KFPS (FHANA IS NOT A REGISTERY) ! I have been in the breed since 1986 and breed for the older, heavy, Baroque Friesian. Once in a while we get white, this is due to the older blood lines in my horses that produce not only a nice heavy built Friesian, but also a long lived Friesian, my horses live into their mid 20's. This colt is coming a year old in May, is being registered with KFPS. He is microchipped and vaccinated he will be a big horse. All of my breeding stock are KFPS registered and in the stud book