Help me name Apolline and Philippa's sister!

We have two girls [name_f]Apolline[/name_f] ([name_f]Apple[/name_f]) and [name_f]Philippa[/name_f] (Pippina) and are expecting third baby in [name_u]August[/name_u]. We have [name_m]Peter[/name_m], [name_m]Pedro[/name_m] and [name_m]Pietro[/name_m] on the list for a boy, honoring my dad and hubby’s grandfather, but we are at a loss for girls’ names.

We like more quirky old-fashioned names with prominent “p” and “l” sounds, but are open to different ideas.

We really like [name_f]Lupita[/name_f] as a name but worry it’s too nicknamey and cutesy in comparison to [name_f]Apple[/name_f] and [name_m]Pip[/name_m]'s full names. [name_f]Guadalupe[/name_f] isn’t a name we’re attracted to, so there’s no chance we’ll be using it. I’ve been trying to think of [name_f]Lu[/name_f] alternatives with maybe a P name in the middle, but so far we haven’t found anything that made us go “Wow, that could be the one!”.

I don’t see any other [name_f]Lupita[/name_f] options…

[name_f]Calliope[/name_f]
[name_f]Eulalie[/name_f]
[name_f]Eugenie[/name_f]
[name_f]Eudora[/name_f]
[name_f]Estelle[/name_f]
[name_f]Leonie[/name_f]
[name_f]Lucienne[/name_f]
[name_f]Olympia[/name_f]
[name_f]Paloma[/name_f]
[name_f]Penelope[/name_f]
[name_f]Petra[/name_f]
[name_f]Pilar[/name_f]
[name_f]Sybil[/name_f]
[name_f]Wilhelmina[/name_f]
[name_f]Winifred[/name_f]

I have a friend named [name_f]Guadalupe[/name_f] and they call her [name_f]Lupita[/name_f] or [name_f]Lupe[/name_f]. You can just nickname her [name_f]Lulu[/name_f] or [name_f]Pita[/name_f]?
Here are some of the names I liked and think would go nicely with [name_f]Apolline[/name_f] and [name_f]Philippa[/name_f]:

[name_f]Venezia[/name_f]…[name_u]Vinny[/name_u]

Paollina…[name_f]Polly[/name_f]

[name_f]Chiara[/name_f]… Chichi?

[name_f]Fabiana[/name_f]…Fabby

I really like like your girls’ names.

I second @sarah1800’s suggestion of Calliope.
I think Lupita works as a nickname for Calliope (or Lopita,Liopita, Cliopita - it’s not a true “Lu” sound, but I don’t think that matters). It’s ‘l’ and ‘p’ heavy, but gives each girl their own start and end sounds. It’s also of Greek origin, like her sisters’ names.
I think Olympia and Penelope could also use the nn Lupita (or Lympita/Lipita and Lopita).

I like the suggestion of Paloma/Palomita, too.

Some other thoughts:

Leopoldine
Delphina/Delphine
Petronella / Petronelle
Adelpha
Pelagia
Pomeline (probably too close to Apolline, given her nn.)
Palantina
Palestrina
Elspeth
Calypso
Calpurnia
Opaline/Opalina

Eponine/ Epona
Leonora/Leonita
Despina
Amapola
Adelita
Seraphine/Seraphina/Seraphita
Josepha/Josephine/Josephina (Chepita?)
Leocadia
Euphemie
Euphrasia
Raphaelle/Raphaela
Philomena
Sophronia
Alethea
Lupelina
Lysandra
Galatea
Ophelia/Ophelie
Thessaly
Vespasia
Mariposa
Lavinia
Lucinda (Lusita)
Liliane (Lilita)

[name_f]Leticia[/name_f]
[name_f]Paulina[/name_f]/ [name_f]Paulette[/name_f]
Luvina
[name_f]Pernilla[/name_f]
[name_f]Elvira[/name_f]
[name_f]Palmira[/name_f]
[name_f]Prunella[/name_f]

No “p” sound in this one…but I know a [name_f]Zuleika[/name_f] that we all call Zule (Zoo-lee), but there’s lots of other nicknames you could go with.