I had a friend when younger whose name was Priscilla. Her siblings all had similar old-fashioned sort of frilly names, so it worked, and she was fun and quirky, so she made the name her own. I think that that happens with most names. If you sense that a child of yours would meld with a certain name and you don't have major misgivings or think it's super weird then go for it!
I called her Prisca as a nn, btw. :)