Mary-Kate and Ashley Olsen launched their new luxury handbag line for their brand The Row with a preview event at Barneys and an exclusive dinner at soon-to-open Upper East Side restaurant Crown. The Olsens’ line is made from exotic materials including crocodile and python and range from $2,800 to $40,000, but guests received more moderately priced leather mirror cases. Mary-Kate left a little early because she was double-booked hosting another event. Crown, founded by the team behind The Lion, will open in September. [Page Six]