Johnette. I'm guessing her dad's name is John?
Or just the child of parents who really, really wanted a boy?
Nigella Lawson has two sisters called Thomasina and Horatia. I always found that funny.
I should point out that she also has a brother, and two half-siblings (amusingly, the half-sister is called Emily, I guess wife#2 preffered more traditionally feminine names).