Sibling for Persephone!

What about Ishtar (or Astarté)? She was a Babylonian goddess who went to the underworld, then came back.

Orpheus for a boy....

(I am not taking the piss)

Ariadne for sure! Maybe Calliope?

Your boys names are all too plain. Ptolemy or Oberon would be great.

Andromeda

and

Septimus

Both my sons' names are on your boy list, so you might like what we're calling our third boy - Jarvis.

Athena for a girl, Oberon for a boy.

DD claims she is going to have twin girls when she is older called Persephone and Hermione

My mum wanted to call me Persephone, but was outvoted... I think it's a gorgeous name. Stick with the Greeks, I say. I vote for Cassandra too. Or maybe Cressida?

I like Ariadne, but it's a bit a repeat but different of Persephone, if that makes sense.
Cecelia or Beatrice would be great, or even Cecilia/Cecily/Cicely or Beatrix?
Mariella is fab but a bit flat against a Persephone.

Felix or Gregory for the boys.

Other ideas:
Zenaïde, Athenaïs, Hortensia, Philomene, Circee, Azalea, Tessalie, Aphra, Andromeda, Artemise/ia, Brunehilda/Sunhilda/Swanhilda, Wilhelmina, Coraline, Cleophee, Castille, Domitilla, Bertille, Cybele, Nimue, Cephise, Eglantine?

Ferdinand, Ezekiel, Eustace, Gustave, Octave, Nestor, Arnold, Harold, Zephyr, Rudyard, Ephraim, Basil, Melchior, Joachim, Rufus, Emil, Elzear, Gideon, Gilbert, Hector, Herbert, Isidore, Leonard, Icabod, Jovian?

Boys:
Rafferty
Quillan
Jolyon
Montague
Clancy

Girls:
Mirabel
Peggotty
Dieudonne
Rumer
Xanthe

Oh Persephone and Ariadne are just GORGEOUS together - go for that!

If you have a boy, I agree that you should go with something a bit more exciting. Orion or Atticus or Hercules or Odysseus or something else that's wild and amazing and fabulous.

Just to add, I like the meaning of Ariadne too

My DD's name (Ariadne) is on your list, so of course I think that's the best choice!

From your boys list I think Gregory is lovely, and it's not a name that's overused, so it should fit nicely with Persephone

I used to know sibs Pandora and Philomena, strikes me they fit well with Persephone .

What about Daphne, Sylvia or Xanthe?
Or maybe Cassia?

Benedict would be nice. How about Iolanthe for a girl? I love this name, but DH wasn't having any of it

Agree that most of your suggestions are a bit plain compared to Persephone (which I love, by the way, but would never be daring enough to use!). Like Eliza and Cecilia from your girls' list, but feel Eliza's too different in style and Cecilia and Persephone are a bit of a mouthful together because of all the 's' sounds.

Felix and Theodore are nice choices, but again I don't think they really 'go'. Reckon you need something a but more dramatic!

How about:

Athena, Atalanta, Estella, Mirabelle, Clio, Xanthe, Cassia, Tabitha, Thalia, Alethea, Cordelia, Delilah, Isadora

Atticus, Cassian, Raphael, Benedict, Xavier

Are you a Sound of Music fan perchance?

I like Mariella and Theo(dore) best from your lists.

I love Persephone! I think Valentina, Antonia, Antigone, Beatrice and Ariadne for girls and Sebastian (although don't like Seb/Basty), Montgomery, Benedict, Thaddeus, Fabian, Quentin and Tristan would go really well!

i love Athene, and i think it would be lovely with Peresphone. from your list i like Eliza and Liesl. i also like Annaliese.

boys - love Sebastion and Theodore. also love manic's suggestion of Xavier.

Girl:
Ariadne - quite like it and one of the best matches with Persephone
Beatrice - not keen and it doesn't have the 'wow' factor of Persphone
Cecelia - quite like it
Eliza - quite like it, think you need a longer name though
Gretel - not keen and it's a mismatch imo
Heidi - quite like it but ditto to Gretel re mismatch
Liesl - dislike it
Mariella - not keen but it goes well with Persephone
Michaela - like it but total mismatch with Persephone

Boy:
Ewan - not keen
Felix - love it. Think you might need a longer, fancier name though
Gregory - not keen
Patrick - love it. How do you feel about alliteration?
Sebastian - like it. Good match
Theodore - it's ok. Good match

From other suggestions I think Electra is wonderful (if a bit bizarre!) and also love Cassandra. Antigone, Calliope, Fabian and Benedict would all go very well with Persephone imo. Ptolemy is, I think, too similar.

How about:
Araminta, Cassandra, Delilah, Elisaveta, Evangeline, Emmeline, Francesca, Georgiana, Gabriella, Henrietta, Julianna, Lavinia, Miranda, Natalia, Octavia, Ophelia, Rosalind, Rosamund, Tabitha, Veronica, Vanessa, Valentina, Xaria.

Frederick, Josiah, Maximillian, Montgomery, Nathaniel, Nicholas, Timothy, Xavier, Zachariah, Zebediah

I think Ariadne would go v well with Persephone.

just out of interest what DO you call Persephone for short?
sephi? persy?

Ptolemy nn Tolly :)

Persephone? Really?