What would you call a sister to Katherine, Emily, Alice and Charlotte?

[Tiredstill]

Help me with inspiration for a name for a fictitious character!

Florence

Lucy immediately sprang to mind. Or:

Elizabeth
Annabel
Julia/Julie
Margaret
Amelia
Hannah
Sophie
Amy

Lydia or Eliza or Maria

Annabelle
Lucinda
Penelope
Rachel
Sarah
Eloise

Abigail
Amelia
Lucy
Georgina

Josephine

Flora

All very royal names. I would go with Elizabeth

Florence

Something similarly classic sounding but with a different ending sound to the other names and a different stating initial :
Laura
Victoria
Helena
Isabel
Sarah
Julia
Victoria
Lydia

Jemima

Georgiana

Olivia or Jessica

Mary?

Megan or Rosie x

Alexandra
If set in Victorian times then something classic like Athena (sister of Florence Nightingale) or Diana
If set in modern times then something Shakespearean like Hero, Imogen or Viola.

Brontë or Harriet (or maybe Hettie)

I also want to know when it's set! Alice, Emily and Charlotte sound v. late Victorian/ Edwardian to me, so I'd say names like Edith, Lucy, Maud, Harriet.

Katherine doesn't seem as if it'd be such a fashionable name from the same period? But maybe I'm wrong.

Grace

Idolde

Elizabeth, Anne or Lucy.

Elizabeth

Harriet

Rebecca without a doubt

Grace