My great aunt (who is 76) is named [name_f]Geraldine[/name_f], but she always wanted a middle name. In school, she often wrote her name as [name_f]Gloria[/name_f] [name_f]Geraldine[/name_f] because of this. She is a significant figure in my family as she raised my mother and her brothers from age nine onward. I view her more as a grandmother than an aunt.
What do you think of this combination?
I think it is charming! Very retro! It also gives the possibility of the nn [name_f]Gigi[/name_f].
It sounds good.
It would flow even better, though, without the l’s and three syllables.
[name_f]Geraldine[/name_f] vs. [name_f]Gloria[/name_f] is my personal preference.
[name_f]Love[/name_f] [name_f]Geraldine[/name_f].
What a sweet-sounding combo! I like it a lot! 
Very retro. I like the story behind it.