Portia de Rossi, left, and Ellen DeGeneres are shown posing for photos at the 19th Annual GLAAD Media Awards in April 2008. They were married in Los Angeles on Saturday. ((Chris Weeks/Associated Press))

They're married! Ellen DeGeneres and Portia de Rossi exchanged handwritten wedding vows Saturday evening in an intimate ceremony at their Beverly Hills home.

A representative for the couple told People magazine that 19 guests attended the ceremony, including DeGeneres's mother Betty and de Rossi's mother Margaret Rogers, who arrived from Australia for the event.

After California's Supreme Court overturned a state ban on same-sex marriages in May, DeGeneres, 50, announced on a taping of The Ellen DeGeneres Show that she planned to marry 35-year-old de Rossi, the glamourous actress whose TV credits include Ally McBeal.

The couple has been together for four years, appearing at Hollywood red-carpet events.

After winning her fourth consecutive Daytime Emmy for talk show host in June, DeGeneres said a wedding date had not yet been set and that she would show "a tiny bit" of the nuptials on her show.

"I can't wait to get married," she told People magazine. "I feel like it's long overdue." 

Actress Katherine Heigel conveyed her best wishes to the couple at a Hollywood charity event on Saturday. "One of my favourite people of all time is Ms. Ellen DeGeneres, so I wish her all the best, all the happiness, all the joy that comes with that certificate," she told Associated Press Television.

DeGeneres made broadcast history in 1997 when her character came out of the closet on her ABC sitcom, Ellen, becoming the first openly gay lead character on U.S. prime-time network television.

The move drew cheers from gay civil rights organizations but was condemned by some religious groups.

A month before, DeGeneres had proclaimed from the cover of Time magazine that she was a lesbian.

With files from the Associated Press