As I've stated before, there will be a slight tension between these two. Baintighearna Alba wants to be Scotland's National Heroine, but Britannia technically is, already. Again, think of them being like Hal Jordan and Guy Gardner. However, I imagine them becoming more like friendly rivals.

Baintighearna Alba/Annella McMillan belongs to me
Britannia/Alicia Goldenwaite belongs to  leoni2 and  TRAIN