I love these:
Antoinette "
Anya"
Cassiopeia "
Cassie"
Christabel "
Belle"
Elisabetta "
Eliza"
Evangeliya "Liya"
Florentine "
Flora"
Laurentine "
Lola"
Persephone "
Effie"
Petronilla "
Petra"
Temperance "
Emmy"
Boys
Aleksander "
Aleks"
Beauregard "
Beau"
ChristopheConstantinMaximilian "
Maxim"
Montgomery "
Monte"
Theodosius "
Teddy"
....Ok basically I love all the girls names.
For siblings for
Wilhelmina and
Marguerite, I like:
Montgomery!
BeauregardChristophe
AntoinetteChristabelTemperance
Really, really nice picks. I do enjoy a meandering name, and I really like the fact that both W & M are florid without being gossamer-delicate. They have an earthy strength about them.