Catherine Giudici and Sean Lowe Catherine Giudici and Sean Lowe

The Bachelor's Sean Lowe and Catherine Giudici are officially married.

On Sunday, the couple walked down the aisle in a live ceremony performed by Lowe's father at the Four Seasons Resort Biltmore in Santa Barbara. Giudici, 27, wore Monique Lhuilier. Show alums who attended include The Bachelorette's married couples Ashley and J.P. RosenbaumTrista and Ryan SutterDeAnna and Stephen Stagliano, The Bachelor's Jason and Molly Mesnick as well as last season's Bachelorette pair, Desiree Hartsock and Chris Siegfried, who are currently engaged.

Check out the Bachelor's couple track record

Sean and Catherine, who found love on Season 17 of the ABC reality series, are the only couple from the Bachelor franchise to got engaged in the finale and then ultimately wed. (Remember that Jason didn't initially pick Molly.)

The Bachelor's Chris Harrison: Sean lights up like the Fourth of July when he's around Catherine

Watch our March 2013 interview with Sean and Catherine: