It's a May-December marriage for Mary-Kate Olsen.
The 29-year-old former child actress tied the knot with her French banker beau of three years, Olivier Sarkozy, 46, at an intimate Manhattan ceremony on Friday night, a source said.
The reception was held at a private residence on 49th Street, between Second and Third avenues; cocktails were served in a rear garden before the 50 guests dined indoors.
Party decor consisted of "bowls and bowls filled with cigarettes, and everyone smoked the whole night," the source said.
The couple became engaged in 2014 and live in New York.
