[name]Sylvie[/name], [name]Lydia[/name], and [name]Adeline[/name] - lovely! And, no, don’t change [name]Adeline[/name]'s spelling. If anything, I think [name]Adelyn[/name] [name]Nyx[/name] is harder to say!
As for middle names that feel like [name]Beatrice[/name], [name]Patricia[/name] really doesn’t to me. But, if you want something that feels like both [name]Patricia[/name] and [name]Beatrice[/name], [name]Patience[/name] does! And it’s got that quirky cute virtue vibe. But, it doesn’t have three syllables. Hm. You might try [name]Adelaide[/name], [name]Amabel[/name], [name]Bryony[/name], [name]Cecily[/name], [name]Clementine[/name], [name]Dorothy[/name], [name]Eloise[/name], [name]Estella[/name], [name]Gwendolen[/name], [name]Genevieve[/name], [name]Harriet[/name], Hosanna, [name]Isabel[/name], [name]Juliet[/name], [name]Jessamine[/name], [name]Lillian[/name], [name]Margaret[/name], [name]Matilda[/name], [name]Ramona[/name], [name]Rosalind[/name], [name]Susannah[/name], [name]Violet[/name], or [name]Vivian[/name].
I think [name]Sylvie[/name] [name]Adelaide[/name] [name]Nyx[/name], [name]Sylvie[/name] [name]Gwendolen[/name] [name]Nyx[/name], [name]Sylvie[/name] [name]Juliet[/name] [name]Nyx[/name], [name]Sylvie[/name] [name]Margaret[/name] [name]Nyx[/name], [name]Lydia[/name] [name]Cecily[/name] [name]Nyx[/name], [name]Lydia[/name] [name]Violet[/name] [name]Nyx[/name], [name]Adeline[/name] [name]Bryony[/name] [name]Nyx[/name], [name]Adeline[/name] [name]Estella[/name] [name]Nyx[/name], [name]Adeline[/name] [name]Harriet[/name] [name]Nyx[/name], or [name]Adeline[/name] [name]Ramona[/name] [name]Nyx[/name] might be nice.
[name]Lemon[/name]