I guess she is something of a socialite-on-the-rise. A college student in London and granddaughter of children's book illustrator Richard Scarry, she is obviously trying to make a mark in fashion too.
here are some pics of her:
1) from londonfashionweek.co.uk (with Camilla al Fayed)
2 and 3) from hola.com originally (and bought by casiraghitrio.com, my site)
Olympia with Pierre Casiraghi at Maxim's in Paris for a charity fundraiser (for a hospital; the fundraiser was hosted by Princess Gloria von Thurn und Taxis)
4) from newyorksocialdiary.com (with Fiona Scarry)
Olympia is also a model for Storm...and she has some article written about her online by the Times in the UK. She used to date Neelee Hooper for awhile...Pierre seems young for her. She's definitely wild, I'm sure his mother is freaking out.
I think Nellee is like 30-something and she dated him at 17/18 for about 3 yrs...the coupling with Pierre is strange, but apparently she loves to be photographed, so who knows. She may want a little fame, her family history is pretty interesting and she is an It girl in London, all through Europe basically. Her style isn't so bad.