Charmian Bond was James Bond's paternal Aunt who lived in a small village called Pett Bottom, Canterbury.
Charmian was the sister of James' father Andrew Bond. After the death of Andrew and his wife Monique Delacroix Bond, Charmian raised Bond up until he entered Eton College at the age of 12.
In the Spectre teaser trailer, an Order of Temporary Guardianship is seen with what appears to be Charmian Bond's signature.
Official Art of Charmain by Kev Walker for SilverFin