By 1978, Donald Trump had launched the Manhattan real estate business that would begin to make him a billionaire. Trump purchased a 50 percent stake in the rundown Commodore Hotel located next to Grand Central Terminal. The hotel was reopened in 1980 as the Grand Hyatt Hotel, in partnership with the Hyatt hotel chain. Trump wasn’t all business at the time, though. In 1977, Trump married Czech model Ivana Zelníčková. The couple would go on to have three children together but would divorce in 1992 following Trump’s affair with actress Marla Maples.