. . . is
Christabel Bielenburg ("BEE-len-burg"). She was an English woman married to a
German during WWII who hid Jews from the Nazis.
Elizabeth Hurley played her life story in a BBC production from the mid-80's that you might like. It is called, simply, "
Christabel."
http://www.en.wikipedia.org/wiki/Christabel_Bielenburg
Also,
Queen Elizabeth II's aunt was named
Alice Christabel. She isn't particularly a hero of mine, but she had a nice name combination.
I'm sad that this name isn't getting a better reception.