In what is sure to be classiest event of the Palm Beach party season, Ivana Trump, the 59-year-old ex-wife of maybe billionaire reality-show star Donald Trump, will wed Rossano Rubicondi, an Italian actor (his last film credit came in 2000) 24 years her junior, at the Mar-a-Lago Club in just under three weeks. According to the invite obtained by Radar, gentlemen should dress in their best whites; ladies in "solid pastelle long gowns (excluding pink and yellow)." It will be be an intimate affair—only 600 guests, including Liza Minnelli! There will also be a nine-foot-tall imported German cake.

Sadly for voyeurs, cellphones and digital cameras are strictly prohibited, though the photo agency Getty has supposedly forked over $250,000 for "exclusive" photo rights (at least according to Ivana's publicist, who adds, "It's going to be extraordinary.")

More, including the full invitation, after the jump!

It is either Trump's third or fourth marriage, depending on whether you believe she actually married high school sweetheart George Syrovatka for a foreign passport in the early '70s. (She says no, though she does cop to having married Donald. Her last marriage, to an Italian businessman named Riccardo Mazzucchelli, lasted under two years.)

Trump and Rubicondi have been dating on and off for seven years. We wish them at least half as many more years of marriage!