In this October 29, 2007 file photo, socialite Ivana Trump and Rossano Rubicondi attend the 2007 G&P Foundation 10th Annual Angel Ball in New York. (AP Photo/Evan Agostini, file)
Trump, who married Rubicondi in April, says she filed a legal separation agreement three months ago.
Trump says she kept quiet about it because she didn't want to ruin Rubicondi's chances as a contestant on the Italian edition of the reality TV show "Survivor."
Rubicondi is Trump's fourth husband.
After about six years of dating, they tied the knot in a lavish ceremony at her ex-husband Donald Trump's estate in Palm Beach, Florida.
Says Trump: "Rossano wants to live in Miami and work in Milan. ... But, I am a New Yorker and my family, friends and businesses are here. As the beautiful song says, `Que sera sera!"'
