Book help: What should my characters baby be named?

She only appears once or twice. The father ( one of my main characters ) name is Lucca Monroe Gallagher. The mothers ( not a main character, but plays a very important part) name was Soleil ( so-lay ) Rue Wischard. Soleil's reincarnations name is Selene Rose Williams ( main character who the books point of view is in ). I keep getting a scene in my head with Soleil and Lucca talking while she Is holding their newborn baby. This is what she says to him "She's yours. Her name is Selena." she said with a big smile on her face. That took place in the spring of 1814. She had to tell him the baby is his because she was married to another man. Should I keep her name Selena or use Rosetta ( my mothers name ) instead?