Imaculata
Hero
I'm fine with the player coming up with the names of the cousins, but I'll help if they need it. My help comes at the cost of those names being hilarious though and the player having to live with whatever jokes arise from it.
Hilarious character names are the best names. Because at least they are memorable.
A heck of a lot better than some convoluted long elven name that no one remembers or knows how to spell.