DD4 - sister to Gabrielle, Francesca and Madeleine?

[ABC20]

Any ideas? I've only just noticed that they're all 9 letters and 3 syllables! Any names that match this? Obviously not the end of the world though

Alexandra
Rebecca
Georgiana

Romily came to mind for me.

What lovely names you have already!
I thought
Josephine
Elodie ( shorter than the otherss but you haven't got an ee ending yet)
Felicity doesn't fit your criteria but I think goes with the others
Clementine (likewise)
Elizabeth 9 letters and 4 syllables
Catherine

Josephine
Evangeline
Susannah

Andromeda
Katharine
Genevieve
Stephanie

Camilla
Stephanie
Isabella
Henriette
Josephine
Philomene

Lorelei
Amelie
Isabel
Melissa
Anastasia
Annabelle
Naomi
Eleanor
Bethany

Allegra
Angelina
Cassandra
Vincenza
Annalisa
Elisabetta/Elizabeth
Amandine

Isabella
Susannah
Alexandra
Julietta
Elisabeth
Annalisa

Rosalind
Georgina
Vanessa

Aw, thank you Saff

Lovely suggestions! Thank you all!

Emilia, Olivia, Hermione, Helena, Susannah, Elizabeth, Eliza, Juliette, Lucille, Claudia, Louisa, Lydia.

Antonia?

Adelaide

Roxanna
Abigail
Marianne
Jocelyn

Oh I forget one of my fave long names, Antoinette

Verity or marianne

Beautiful classic names. DS was going to be Gabriella. Elodie, Eloise, Georgiana and Juliette are after popping into my head.

Everleigh
Kimberley
Thomasina
Esmeralda
Priscilla
Merrideth

I think you have to keep going with the 9 letter, three syllable thing now you have noticed, especially as there are such gorgeous names that flow with your existing names.
As others have said
Katherine
Josephine
Georgiana
Charlotte
are perfect.
Is there a way of spelling Susanna or Rosanna so that they have nine letters? Caroline is another option but is too short & I cannot think of another way of spelling it...Carolynne?
Otherwise, Elizabeth & Alexandra go with your names but have four syllables.
I love all of these names. Maybe it's time to persuade DH we should have one three more and a nanny, night nanny, cleaner & gardener

Thank you Sparky. I love Gabriella, I think I prefer it to Gabrielle but I picked all 3 names, so let him have Gabrielle over Gabriella tbh, I love them both!

Some amazing suggestions I have never thought of! I'm quite keen on keeping the theme too

Thanks everyone!

Dominique
Christina
Georgiana
Jacquetta
Nicolette
Seraphina
Sylvestra
Thomasina
Tryphena

I know it's 4 syllables, but I feel Seraphine is the one that fits.

Natasha

Valentina

Beautiful names op.
Think that you should definitely keep to the three syllables theme.

Adelaide
Anneliese
Abigail
Beatrice
Clementine
Cecily
Caroline
Cassandra
Emmeline
Eleanor
Annabelle
Coralie
Harriet
Genevieve
Josephine
Jessamine
Juliette
Jessica
Philippa
Rosalind
Rebecca
Susannah
Stephanie
Seraphine