What is your Grandmother, or Great grandmothers name?

I'm 4 days away from the due date and found out yesterday that the beautiful name I had picked out for my baby, has been taken by someone (kind of) in the family. First off, we don't know if its a boy or a girl and we have a boys name picked out. But the girl name was Zoe Nikole. Found out that my brothers' dads' girlfriend (they've been together for a long time now) has a 2 yr old granddaughter named Zoey Nicole. I'm so upset! I want a really rare name, and I know the older ones aren't used much anymore. So, help me out please!!!