Mary-Kate Olsen (born June 13, 1986) is a fashion designer, producer, author, businesswoman and former actress. She co-founded luxury fashion brands The Row, Elizabeth and James, and the more affordable lines Olsenboye and StyleMint alongside her twin sister Ashley Olsen. Olsen pursued acting independently as an adult until 2012.

Biography

Olsen began attending New York University but took what she called a leave of absence in 2005, following her breakup with Greek shipping heir Stavros Niarchos III.

Olsen has also dated David Katzenberg, son of DreamWorks cofounder Jeffrey Katzenberg; photographer Maxwell Snow; and artist Nate Lowman. In May 2012, Olsen began a relationship with Olivier Sarkozy, half brother of former French President Nicolas Sarkozy. In March 2014, photos were published showing Olsen wearing what appeared to be an engagement ring.

In 2014, Olsen competed in the Hamptons Horse Show. In 2013, her horse Marvelous competed in and won the 38th Hampton Classic Horse Show.


Health issues
In mid-2004, Olsen announced she had entered treatment for an eating disorder, anorexia nervosa. A Got Milk? ad featuring the twins was pulled following the announcement. On November 20, 2007, she was hospitalized for a reported kidney infection.


Death of Heath Ledger
Mary-Kate was a close friend of late actor Heath Ledger. After discovering Ledger unconscious in his bed in January 2008, his masseuse called Olsen twice before contacting police. Olsen sent a private security guard to the scene.

Responding to a claim by an anonymous law enforcement official that she would not speak to federal investigators without a promise of legal immunity, Olsen's attorney Michael C. Miller said, "We have provided the government with relevant information including facts in the chronology of events surrounding Mr. Ledger's death and the fact that Ms. Olsen does not know the source of the drugs Mr. Ledger consumed".