We've learned so much about President Trump and the new First Lady Melania Trump during the past year, but not nearly as much about their family.

Barron Trump, the president's youngest son, has mostly been kept out of the public eye. That's not a bad thing, considering that he's just 11-years-old, but it leaves many people with a lot of questions about the boy whose mother calls him "Little Donald."

We've collected 10 surprising facts about the first family's youngest member, so take a look at this list and learn something new!

1. He's the youngest of Trump's five children

Donald Jr., Ivanka and Eric are Donald's first three children from his marriage with Ivana Trump. Trump's youngest daughter Tiffany is from his second marriage to actress Marla Maples. Barron is Donald and Melania's first child (so far).

2. He's not moving in to the White House just yet

It was announced that Barron and Melania will stay at their home in Trump Tower in New York until Barron finishes his school year in May.

3. He attends a prestigious school

Barron's parents are pretty smart to let him stay and finish his year at Columbia Grammar and Prep School, since a year's tuition there costs around $45,000.

4. He's bilingual

Barron speaks English as well as Slovene. He has lots of chances to practice with his mom and her parents, who also live in New York. Of course his mother Melania also has a gift for languages, speaking English, Slovene, German, French and Serbian.

5. He has whole floor to himself in Trump Tower

When your family owns a whole skyscraper maybe it's not surprising that your parents give you a floor to yourself. In an interview with Parenting.com, Melania said that she lets Barron draw on the walls of his playroom to express himself, and that he likes his bedroom "clean and white."

6. He'll be the first boy in the White House in 54 years

While presidents like Gerald Ford and George H.W. Bush had sons while in office, they were grown up and didn't live in the White House. Since John F. Kennedy Jr. left in 1963 only daughters have lived with the first family.

7. Melania's nickname for him is "Little Donald"

She says that while Barron looks a little like both her and Donald, he takes after his father personality-wise. The Trump family's butler, Anthony Senecal, said that when Barron was just 2 years old he once said "Tony! Sit down! We need to talk!"

8. Building models is one of his biggest hobbies

Melania says that Barron loves to make Lego models of the places he sees while the family is traveling - maybe he's working on one of the White House right now! He also plays baseball, golf and tennis, plus he loves playing with cars and helicopters.

9. Believe it or not, he has no nannies!

Donald once said about raising children that "If you have too much help, you don't get to know your children." Until recently, Melania would take Barron to school and make him lunch at home every day.

10. Like his parents, he has expensive taste

According to Melania, Barron uses caviar moisturizer (from her line of cosmetics) every night. Plus, it seems like he's always in a suit, just like his dad.

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