Her name is Belle, sort of short for Belgique and sort of similar sounding to Bill. (Very similar to "Bill" in both Steve's and Tadhg's accents.)
She is beautiful and has a lovely temperament. She puts up with the boys but can also run fast and squeeze into tiny spaces if she needs a break. Only problem is her serious lack of interest in the litter tray. I suppose that's not surprising given that her first couple of months were spent outside. We've had to temporarily lift the rugs and refrain from dumping the clean laundry on the living room floor (and leaving it there for days) like we usually do!