It’s another girl! 
I always struggle with choosing names, but you Berries have been so helpful in the past! 
I’m starting the brainstorming process early this time, hoping to have a name picked out by the time labor comes. Right now, I’m we have two pn our list: Natalia and Octavia. Thoughts?
Bonus points for floral middle name combos!
Can you help me complete the sibling set: Victoria, Katerina, Alessandra, and…?
Thank you in advance! 
Hmm I like the name [name_f]Octavia[/name_f] more, but I think [name_f]Natalia[/name_f] works better with your other girls’ names. [name_f]My[/name_f] vote goes to [name_f]Natalia[/name_f] this time.
I love them both, but I think [name_f]Natalia[/name_f] fits better!
[name_f]Natalia[/name_f]! It’s a beautiful name.
[name_f][/name_f]If you want floral middle names, I like…
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Rose[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Daisy[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Violet[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Heather[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Clover[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Bloom[/name_f]
[name_f]Octavia[/name_f] [name_f]Marigold[/name_f]
Your daughters’ names are lovely, and you have two really good options already. But lists are fun, so here we go:
[name_f][/name_f][name_f]Bianca[/name_f]
[name_f][/name_f][name_f]Carla[/name_f]
[name_f][/name_f][name_f]Daniela[/name_f]
[name_f][/name_f][name_f]Francesca[/name_f]
[name_f][/name_f][name_f]Giada[/name_f]
[name_f][/name_f][name_f]Mya[/name_f]
[name_f][/name_f][name_f]Natasha[/name_f]
[name_f][/name_f][name_f]Tasha[/name_f]
I think both are great options but [name_f]Natalia[/name_f] feels right with your three older daughters. [name_f]Natalia[/name_f] also feels warmer and friendlier to me than [name_f]Octavia[/name_f].
[name_f][/name_f]Floral middle name ideas:
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Bloom[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Lilac[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Violet[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Willow[/name_f]
[name_f]Octavia[/name_f] [name_f]Hazel[/name_f]
[name_f][/name_f][name_f]Octavia[/name_f] [name_f]Poppy[/name_f]
[name_f][/name_f][name_f]Octavia[/name_f] [name_f]Laurel[/name_f]
[name_f][/name_f][name_f]Octavia[/name_f] [name_f]Holly[/name_f]
Wow, big congrats! I can remember posting for Alessandra! 
I agree with the others that Natalia would best suit your romantic, glam/regal & European/ international sounding girls’ names. Both would work though.
I can’t quite remember the current girls’ middles so likely repeats of theirs but how about (with “natural” middles):
Isabella Ivy
Diana Fleur
Leonora Maple
Magdalena Violet
Francesca Holly
Helena Marigold
Georgiana Daisy
Laetitia (French pronunciation) Clover
Bianca Eirlys
Hope this helps!
[name_f]Natalia[/name_f] is familiar but full of flair and international charm!
[name_f][/name_f][name_f]Octavia[/name_f] is strong and bold, but grounded too.
[name_f][/name_f][name_f]Natalia[/name_f] is my personal favourite 
Some floral middles:
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Bluebell[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Primrose[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Juniper[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Florence[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Violet[/name_f]
[name_f]Octavia[/name_f] [name_f]Tansy[/name_f]
[name_f][/name_f][name_f]Octavia[/name_f] [name_f]Jonquil[/name_f]
[name_f][/name_f][name_f]Octavia[/name_f] [name_f]Rosemary[/name_f]
[name_f][/name_f][name_f]Octavia[/name_f] [name_f]Lilac[/name_f]
[name_f][/name_f][name_f]Octavia[/name_f] [name_f]Lily[/name_f]
I adore [name_f]Octavia[/name_f], I know so many Natalies, Natalia’s and Natashas, but [name_f]Octavia[/name_f] is just beautiful.
[name_f]Victoria[/name_f], [name_f]Katerina[/name_f], Alessandra… I think [name_f]Octavia[/name_f] works the better because it is more elegant while [name_f]Natalia[/name_f] feels more down to earth cool.
[name_f][/name_f][name_f]Leonora[/name_f]
[name_f][/name_f][name_f]Miranda[/name_f]
[name_f][/name_f][name_f]Dorothea[/name_f]
[name_f][/name_f][name_f]Zara[/name_f]
[name_f][/name_f][name_f]Paulina[/name_f]
[name_f][/name_f][name_f]Magdalena[/name_f]
[name_f][/name_f][name_f]Helena[/name_f]
[name_f][/name_f][name_f]Francesca[/name_f]
[name_f]Octavia[/name_f] is my favorite! She’s so elegant and strong, and blends so nicely with your other girls. A few middle name ideas (floral):
[name_f][/name_f][name_f]Octavia[/name_f] [name_f]Lily[/name_f]
[name_f][/name_f][name_f]Octavia[/name_f] [name_f]Blossom[/name_f]
[name_f][/name_f][name_f]Octavia[/name_f] [name_f]Bloom[/name_f]
[name_f][/name_f][name_f]Octavia[/name_f] [name_f]Fern[/name_f]
[name_f][/name_f][name_f]Octavia[/name_f] [name_f]Lilac[/name_f]
[name_f][/name_f][name_f]Octavia[/name_f] [name_f]Primrose[/name_f]
[name_f][/name_f][name_f]Octavia[/name_f] [name_f]Petal[/name_f]
[name_f][/name_f][name_f]Octavia[/name_f] [name_f]Fleur[/name_f]
[name_f][/name_f][name_f]Octavia[/name_f] [name_f]Tearose[/name_f]
A few other names you might like:
[name_f][/name_f][name_f]Lavinia[/name_f]
[name_f][/name_f][name_f]Minerva[/name_f]
[name_f][/name_f][name_f]Clarissa[/name_f]
[name_f][/name_f][name_f]Leandra[/name_f]
[name_f][/name_f][name_f]Lucasta[/name_f]
[name_f][/name_f][name_f]Rosmerta[/name_f]
[name_f][/name_f][name_f]Rosalba[/name_f]
I think [name_f]Octavia[/name_f] goes with [name_f]Victoria[/name_f], [name_f]Katerina[/name_f], and [name_f]Alessandra[/name_f]
[name_f]Natalia[/name_f] is cute but I don’t like the nn [name_m]Nat[/name_m], [name_f]Octavia[/name_f] is okay… Here is some other suggestions of names to go with [name_f]Victoria[/name_f], [name_f]Katerina[/name_f] and Alessandra…
[name_f][/name_f][name_f]Eliana[/name_f]
[name_f][/name_f][name_f]Josephina[/name_f]
[name_f][/name_f][name_f]Anastasia[/name_f]
[name_f][/name_f][name_f]Seraphina[/name_f]
[name_f][/name_f][name_f]Georgiana[/name_f]
[name_f][/name_f][name_f]Rosalinda[/name_f]
[name_f][/name_f][name_f]Giulianna[/name_f]
[name_f]Natalia[/name_f] is my favorite, but both are lovely and go well with your other children 
Your sibset is beautiful!
[name_f][/name_f][name_f]Natalia[/name_f] and [name_f]Octavia[/name_f] are both beautiful but [name_f]Natalia[/name_f] has been making my heart sing these past several months, so I’m voting for her.
[name_f][/name_f]Good luck!
[name_f]Victoria[/name_f], [name_f]Katerina[/name_f], [name_f]Alessandra[/name_f] and [name_f]Natalia[/name_f]
Congratulations! 
[name_f][/name_f]I love [name_f]Natalia[/name_f] with your girls’ names!
[name_f][/name_f](Victoria, [name_f]Katerina[/name_f], [name_f]Alessandra[/name_f], and [name_f]Natalia[/name_f] are stunning sister names!)
Congratulations! How fun that it’s another girl.
[name_f][/name_f]From your list, I think [name_f]Natalia[/name_f] fits super nicely! Flows well and fits style wise for sure.
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Rose[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Lily[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Lavender[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Poppy[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Evergreen[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Primrose[/name_f]
[name_f]Natalia[/name_f] is my favorite for you! It’s beautiful, lovely, international and sophisticated just like your oldest daughter’s names.
[name_f][/name_f]Middle names:
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Lotus[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Marigold[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Hyacinth[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Anemone[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Jessamine[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Larkspur[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_m]Yarrow[/name_m]
[name_f][/name_f][name_f]Natalia[/name_f] Periwinkle
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Hibiscus[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_m]Coriander[/name_m]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Anthea[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Iris[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Briar[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Orchid[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Delphinium[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Sunflower[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_m]Cosmos[/name_m]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Pansy[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Aster[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Honeysuckle[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Veronica[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] Gerbera
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Rue[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Daffodil[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Fern[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Amaryllis[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Chamomile[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Wildrose[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Wisteria[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Angelica[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Calanthe[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Zinnia[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Meadow[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Tulip[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Jasmine[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Peony[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Amaranth[/name_f]
[name_f][/name_f][name_f]Natalia[/name_f] [name_f]Diantha[/name_f]