I like Vivienne. It goes well with Penelope. I don't like Persephone in this combo~ just the sounds are so close. It's way too close to Penelope.
Eight letter names-(sorry for any repeats)
Lucretia nn Lucy
Thanks so much for all the great ideas and the feedback! Dad is not crazy about any of the names so far, but it looks like he may give in with Vivienne (somehow spelling this way as opposed to Vivian makes a difference for him haha- I'll take it!)
If anyone else has any ideas we'd love to hear them! Thanks again everyone <3
Persephone is beautiful, but sounds too much like Penelope. Fianna is equally pretty and definitely unique, but she'll constantly be correcting people who think her name is Fiona. Fiona is pretty trendy right now, and I'm not sure it fits with Penelope.
That leaves us with the lovely Vivienne. I don't know if you're aware, but Vivien Leigh is an old-school Hollywood actress. This, at least for me, nixes that option (unless of course you're hardcore Hollywood fans). While I love Maeve, Vivienne Mae goes best and balances out the length of Vivienne.
Here are some more unusual eight-letter options for you to browse (asterisks are my faves):
Penelope Marie is lovely! Although Vivienne is also lovely, You might not want to name daughter #2 Vivienne Leigh, AKA Scarlett O'Hara.!!!
I think Fianna is my favorite from your choices. Beautiful name!
Some others might be
All of your name choices are beautiful! My favorite is Fianna, it is very pretty and unique!