Her parents divorced in 1995. She started her acting career when she was at the age of nine months when she shared the role of Michelle Tanner on ABC sitcom Full House. Just Jared on Facebook. Sponsored Links by ZergNet Also on Just Jared. She also dated Maxwell Snow from September 2006 until mid-2007. In 2008 she started dating artist Nate Lowman and ended her relationship with him in February 2010. On March 2, 2014 it was reported that she and Sarkozy were engaged. Brother: Jake Olsen, Trent Olsen Sister: Ashley Olsen, Elizabeth Olsen, Taylor Olsen Information. Mary-Kate Olsen is an American actress, fashion designer, producer, author and businesswoman. She was born on June 13, 1986 in Sherman Oaks, Los Angeles, California, United States. Rei Kawakubo, who founded the label Comme des Garons and is known for pushing boundaries in the fashion world. Last year, Mary-Kate and Ashley went for gold and black looks, and they matched in head-to-toe black the year before that.
She is the daughter of David Olsen and Jarnett Olsen. She has two sisters: Ashley Olsen and Elizabeth Olsen and one brother Trent Olsen. She also has a half sister Taylor Olsen and one half brother Jake Olsen from her fathers second marriage.