SOLVED. A rich family that has a dark secret. (spoilers ahead)

[Eliza]

I remember reading this book around 2012. The things that I know about the plot are:
- rich family
- three brothers (two tall, blonde with blue eyes - the younger one has darker skin and hair, like mediterranean features)
- the older brothers hate the younger one
- the young one is an archeologist
- another one is a doctor
- they all meet in france during a summer
- the mother has a past dark secret
- she had a relationship with the family uncle
- years ago, one night her newborn baby died suffocated
- she replaced the baby with another one (the son of the uncle and a woman servant)

[Lobstergirl, au gratin]

Did it seem old or new when you read it?
Cover?
Author's gender?
Sounds like maybe this is mass market fiction?

[Eliza]

Lobstergirl wrote: "Did it seem old or new when you read it?
Cover?
Author's gender?
Sounds like maybe this is mass market fiction?"

It seemed fairly new, the cover was (if I remember correctly) light blue and white and there was a girl with a swimsuit. The author was a woman for sure.
It intrigued me because it seemed like a romance novel but with a darker twist.

[Courtney]

Why does it say solved??

[Lobstergirl, au gratin]

Did you figure out the book, Eliza?