Sister for Louis...

[catinboots]

DC2 due in September and we are struggling with girls names!! Current favourite is Ava. Also like Agatha but WIDE open to suggestions. We have a one-syllable surname beginning with H....

Love Agatha. Also Agnes. I love Beatrice too.

I know a Louis with a sister called Felicity

As Louis has a french feel how about something of that nature.
Celine
Cecile
Elodie
Emilie
Genevieve
Juliette
Marianne (love this)

Evelyn
Sophia
Abigail
Alice
Jessica
Imogen
Caroline
Aurora
Clementine
Emmeline

Agatha nicer than Ava imho.

Cecily, Esme or Verity nice, mayhap?

Rachel
Charlotte
Eleanor (Nell)

think you need to avoid an 'e' sound at the end or as a pair sounds a bit twee IMO

My french nephew who is called Louis has a little sister called Camille.

My Belgian nephew Louis has a sister Marie.

(Although - sparkly's comment - actually both Marie and Camille sound a bit 'ee-ish' at the end. I like Charlotte or Marianne or Harriet or Caroline.)

Marie is lovely, imo, and it has a longer EE sound at the end than Louis does, to my ear anyhow, so not too matchy. Camille does too.

Oh definitely go French!

Alyette
Claudine
Delphine
Solange
Charlotte
Anais
Heloise with a silent H
Belle
Severine
Éva instead of Ava
Adele
Madeline
Seraphine
Vivienne
Amandine
Chantal
Yvette