Donald Trump

NEW YORK (CNN/Money) - Donald Trump, father of four, is expecting a fifth child in the spring with wife Melania Knauss, Trump's spokeswoman said on Tuesday.

The 59-year-old real estate developer has three children with Ivana Trump: Donald Jr., 27; Ivanka, 23 and Eric, 21. He has a daughter, Tiffany, 11, with Marla Maples.

Trump married Knauss, 35, a Slovenian model, in a lavish ceremony in Florida in January attended by a host of celebrities from former New York mayor Rudy Giuliani to singer Billy Joel and journalist Katie Couric.

The child will be Melania's first.

Trump was already famous as a property and casino mogul when he moved into American living rooms in 2003 as the star of the hit television show, "The Apprentice," in which young contestants vie to show their business savvy and win a spot working on a Trump venture.

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-- from staff and wire reports