Brother to Vivienne Rose

I’m looking for a name that will pair well with [name_f]Vivienne[/name_f] [name_f]Rose[/name_f]. It should be a retro-mod name that would sound equally comfortable in a modern kindergarten class or on the latest episode of Mad Men, with a strong preference to [name_m]French[/name_m] root to reflect [name_m]French[/name_m] heritage. A spunky nickname would be nice ([name_f]Viv[/name_f] for [name_f]Vivienne[/name_f], it would be nice ot have another cute nickname too). So far [name_m]Mathieu[/name_m] and [name_u]Theo[/name_u] are the forerunners so far, but I’m open to lots of others. [name_m]French[/name_m] name could be first or middle.

[name_m]Gilbert[/name_m]
[name_m]Armand[/name_m]
[name_m]Yves[/name_m]
[name_m]Alphonse[/name_m] (An oddball but I think it’s gorgeous. Plus, you get [name_m]Alf[/name_m].)
[name_u]Antoine[/name_u]
[name_m]Vincent[/name_m] (too much V?)
[name_u]Remy[/name_u]

[name_m]Baptiste[/name_m]
[name_m]Beauregard[/name_m]
[name_m]Benoit[/name_m]
[name_m]Bertram[/name_m]
[name_m]Claudian[/name_m]
[name_m]Constantin[/name_m]
[name_m]Davide[/name_m]
[name_m]Deveraux[/name_m]
[name_m]Emile[/name_m]
[name_m]Eric[/name_m]
[name_m]Gerard[/name_m]
[name_m]Henrik[/name_m]
[name_m]Julian[/name_m]
[name_m]Leon[/name_m]
[name_m]Leopold[/name_m]
[name_u]Lionel[/name_u]
[name_m]Lucian[/name_m]
[name_m]Marcellus[/name_m]
[name_m]Mars[/name_m]
[name_u]Mercer[/name_u]
[name_m]Olivier[/name_m]
[name_m]Percival[/name_m]
[name_m]Philippe[/name_m]
[name_m]Picard[/name_m]
[name_m]Pierre[/name_m]
[name_m]Quintien[/name_m]
[name_m]Rainier[/name_m]
Rener
[name_m]Rudolph[/name_m]
[name_m]Sabien[/name_m]
[name_m]Severin[/name_m]
[name_m]Thoreau[/name_m]
[name_m]Yannick[/name_m]

[name_m]Amaury[/name_m]
[name_m]Augustin[/name_m]
[name_m]Henri[/name_m]
[name_m]Laurent[/name_m]
[name_m]Marcel[/name_m]
[name_m]Maxence[/name_m] ([name_u]Max[/name_u])