Okay I checked out a few Brittany pedigrees for you by searching for "britanny pedigrees." One of the pedigrees I saw had a grandparent on one parent's side that was also the great grandparent on the other parent's side. So this is not extremely close but still linebreeding. You could further research the line breeding of britannys by doing your own search and studying pedigrees. You might be surprised to find that your female could have some line breeding that you don't even know about. Good luck.