Emrys and Ambrose are perfect twin names because they mean the same thing – immortal, just in different languages. Both are traditionally boys names, which makes them good contenders for strong girls names and they both have good girly nicknames: Emmy and Rose.
Emrys is Welsh. Ambrose is English. Both are names used to describe the man behind the character of Merlin the Magician from the legends of Camelot and King Arthur. More about the names history HERE.