Matilda or Maud?

Maud and Matilda are variations on the same name; Matilda is the Latin form of the Saxon name Maud, and was usually used in official documents, especially of Norman origin.

Some writers use Empress Maud as their consistent designation for the Empress Matilda. This is a useful device to distinguish this Matilda from the many other Matildas around her:

• Henry I had at least one illegitimate daughter named Maud or Matilda.
• Robert, Earl of Gloucestor, was married to a Matilda. Stephen's wife's name was Matilda.
• The Empress Matilda's mother was Matilda of Scotland.