Mary-Kate Olsen engaged to Nicolas Sarkozy's half-brother Olivier

Mary-Kate Olsen is all set to walk down the aisle with her much older beau Olivier Sarkozy, who happens to be former French president Nicolas Sarkozy's half-brother.

According to Us Magazine, the former child star, 27, and her 44-year-old banker fiance have been dating for almost two years and love attending basketball games together.

The couple shares a 6.25 million dollar townhouse in New York City.

While this will be Olsen's first marriage, Sarkozy was previously married to Charlotte Bernard and has two kids with her.