LOVE Mirielle. That was my number one choice since I was a child. I can't even remember why we didn't use it. It's still at the top for DD2.
Our nickname was Miri though.
Anyway - when I first saw
Lucienne in the title, I wasn't crazy about it. But, I really like it as a sibling to Mirielle.
Lucie is the perfect nickname to match, especially with
Elle. And, I wouldn't worry about the name having to be explained.
I had to explain my name growing up, and I still love it. We named our daughter
Clarisse and STILL have to explain it (it seems obvious), but I would never change her name.
I think
Elyse is a bit close to
Elle to use, though I love the name.
Juliette is adorbs, but getting trendy... still I am sorry your husband wasn't on board.
I say go with
Lucienne (which IS pretty).
If you need alternatives:
Francine -
Fran, Francie, Sina
Leontine - Onti, Tiny,
LeonaFaustine -
Fausta,
TinaPaulina -
Lina,
Pauli, etc
BrigittePriscilla - Pril, Prilla, Silla
Adrienne -
Addie, Renn, Adri
GiselleVivienne - Viv,
Vivi,
VienneAdelie
Bettina / Bettine
DaphneCelesteDelphineGenevieve - Genny, Viv
Jocelyn -
JosieGwendolynSuzette -
SuziChantalSandrine -
SandiRoxanne -
RoxyElmira - mira
Nadine - Nadi,
Dina