Right, so, Audrey? We don't have Coronation Street over in Australia, so my associations are Hepburn and Tatou. And it's not as common here as in the US, but not nearly as unusual as DD1. Are there a lot of little English Audreys running about?
Surname 4 syllable, starts with A. DD1 Edith Clare.
This is current shortlist. I can't have Constance as a first name otherwise it'd be frontrunner, probably.
Audrey Constance
Audrey Isolde
Audrey Helena
Felicity Isolde
Isolde Constance