I've loved the name Elsa for a a very long time. It ticks a lot of boxes for me: familiar without being overly popular, and no issues with spelling and pronunciation. But then Frozen was released.
So is the Frozen reference still too overwhelming seven years later? I don't have small children so I'm a bit out of the loop as to whether Frozen is a bit passé now.
Would using Elisabeth with Elsa as a diminutive work - giving options to revert to one of the many non-Frozen nicknames or the full name if she grows up not to love ice queens? (I'm not usually a fan of working backwards to make a nickname work but I like both Elsa and Elisabeth)