Middle names for Valentine? Story Character?

My main character is named Valentine Gray, however she has no middle name. I originally put Gemma in that slot but Valentine Gemma Gray just doesn't flow. I want something kind of grand sounding, maybe noble, kind of royal. She's not, she's just a schools student.

She has very long bold wavy slightly curly hair. It's very voluminous and shiny. It's very dark brown almost black; think Kim Kardashian's hair. Her eyes are aquamarine; there's a ring of bright turquoise blue, then a ring of bright apple green and another ring of bright turquoise blue to compose the overall bright effect.

She's a very bright girl, she likes being in charge and taking leadership. She doesn't always think before she speaks, which gets her into tight places sometimes. She's very smart, but still has her struggles when it comes to school.