Twin girls
Replies
They're all lovely names, although I think the combos as a whole are a bit too long. I don't really consider Adelaide to be a classic name, but it's nice enough.
Audrey Estelle and Zara Genevieve
Blythe Cordelia and Yvette Susannah
Cora Anneliese and Xanthe Aurelia
Dawn Elisabeth and Wilhelmina Daisy
Eleanor Violet and Verity Primrose
Faye Juliana and Usha Winifred
Grace Valentina and Talia Bernadette
Hannah Olivine and Sylvie Francesca
Ivy Melisande and Ruth Adamina
June Orlanda and Quinn Anastasia
Katherine Azalea and Philippa Scarlett
Lily Seraphina and Opal Harriet
Maeve Celeste and Noor Alessandra
Natalia Topaz and Matilda Alice
Octavia Ruby and Laurel Cynthia
Blythe Cordelia and Yvette Susannah
Cora Anneliese and Xanthe Aurelia
Dawn Elisabeth and Wilhelmina Daisy
Eleanor Violet and Verity Primrose
Faye Juliana and Usha Winifred
Grace Valentina and Talia Bernadette
Hannah Olivine and Sylvie Francesca
Ivy Melisande and Ruth Adamina
June Orlanda and Quinn Anastasia
Katherine Azalea and Philippa Scarlett
Lily Seraphina and Opal Harriet
Maeve Celeste and Noor Alessandra
Natalia Topaz and Matilda Alice
Octavia Ruby and Laurel Cynthia
Although I do not like either name or any of those names separately, they do accomplish the theme you are going for perfectly. They go perfectly with each other and sound elegant and classical. They are not common but they are not "weird" or completely out-dated.