Thinking about [name]Gabrielle[/name] [name]Marianne[/name] as little sister to [name]Lauren[/name] [name]Rose[/name]…
The mns are family names. Surname is two syllables, starting with B.
I’d love to hear any thoughts - positive and negative (or alternatives).
[name]Lauren[/name] [name]Rose[/name] is stunning! I like [name]Gabrielle[/name] [name]Marianne[/name], but I think [name]Gabrielle[/name] [name]Marian[/name] flows a little better. Overall it seems a lot longer than your daughter’s name but I don’t think that really matters as long as you love the name 
I like it. The names match a lot though, idk if that’s an issue for you.
A as the second letter, ri present, vowel, then double letters, ending with an e.
I like it though.
I like [name]Gabrielle[/name] a lot! [name]Lauren[/name] and [name]Gabrielle[/name] work well together, and I love the significance of the MN. [name]Gabrielle[/name] has so many nns, so I love that it’s so versatile.
[name]Gabrielle[/name] [name]Marianne[/name] feels like a winner to me! The only thing I’m not a fan of is the lilting 3-3 flow with the slight emphasis on the last syllable for each name. I think something like [name]Gabriella[/name] [name]Marianne[/name] or [name]Gabrielle[/name] [name]Mariana[/name] would make it flow a bit better, but it’s not terrible or anything, haha.
Good luck!
[name]Lauren[/name] [name]Rose[/name] is actually on my favorite names list, though I spelled it [name]Lauryn[/name]. The name [name]Gabriella[/name] [name]Marianne[/name] is beautiful.