What is the origin of the name Anabella?

I am in this goop called the SCA and you have to think of a persona to act out as. I need to think of a name and i was wondering if the names Anabella/Annabella or Arabella would be used in the 14th century... I would also like to know where these names would be used. I know that they would be used in europ but i want to know where. hope you can help...