The Trump family tree is YUGE.

Donald Trump is the 45th President of the United States but though he's been in office since January 2017, many US citizens still have questions about his family and home life. Donald, who has been married to his current wife, First Lady Melania Trump, since 2005, had two wives before tying the knot with Melania, as well as five children in total.

With 39-year-old Donald Trump Jr. recently coming into the political spotlight after responding to accusations of fraternizing with Russian intel in order to gain dirt on Hillary Clinton during the 2016 presidential campaign, people are taking to Google to find out who is the mother of the eldest Trump son.

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Keep reading to find out more about Donald Trump's first wife.

Who is Donald Trump Jr.'s mother?

From 1977 to 1992, Donald Trump was married to Czech-American businesswoman and fashion model Ivana Trump. Together the couple had three children, Donald Trump Jr., Ivanka Trump, 35, and Eric Trump, 33.

ivana trump and donald trump 2014

Ivana and Donald Trump in 2014 at the Eric Trump 8th Annual Gold Tournament.

Where does Ivana Trump live now?

Ivana lives in NYC. After learning that Donald's other ex-wife Marla Maples — with whom Donald had an affair during his 27-year marriage to Ivana — would also be attending Donald's Inaugration, it was reported that Ivana left early on a flight from Washing DC to Manhattan.

What does Ivana Trump do for a living?

Better question: What doesn't Ivana Trump do for a living? The former fashion model has written novels, columns, and even owns a large share of Croatia's second largest newspaper. With her own fashion, jewelry, and beauty lines, Ivana also appeared on Celebrity Big Brother in 2010.

Her other claim to fame involves her ex-husband. Together, Ivana and Donald introduced the world to Pizza Hut's stuffed-crust pizza via commercial. At the time, they were divorced.

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Who else was Ivana Trump married to?

Ivana married an Australian real estate agent named Alfred Winklmayr in 1971. By 1973, the couple was divorced. Ivana then married Donald Trump, whom she divorced in 1977 after a salacious cheating scandal. Post-Trump, Ivana wed two more times to Italian businessman Riccardo Mazzucchelli and Italian model Rossano Rubicondi.

ivana ivanka and donald trump jr

Ivana, Ivanka, and Donald Trump Jr. pose together in 2007.

How much is Ivana Trump's net worth?

According to Celebrity Net Worth, Donald Trump's first wife has a net worth of $60 million. After her marriage with Donald ended in infidelity (on his part), Ivana walked away with a $20 million divorce settlement.

Is Ivana Trump writing a book?

She authored many books in the 1990s. Now in 2017, Vanity Fair reports that the mother of Ivanka, Donald Jr., and Eric Trump is writing a new book called Raising Trump. The novel is supposed to hit bookstands on Sept. 12, 2017 and promises to "reflect on her extraordinary life and the raising of her three children and [recount] the lessons she taught her children as they were growing up."