Who Is Barron Trump? 10 Facts About The New, Elusive First Son

When President-elect Donald Trump appears at inauguration Friday, he'll likely be accompanied by a small sidekick: his 10-year-old son, Barron. Barron, the youngest Trump child, has largely stayed out of the spotlight thus far — but that could change now that his dad is officially in the White House.

Here's everything you need to know about the new First Kid:

Barron was born March 20, 2006, to Trump and his third wife, Melania.

Barron is one of three Trump sons, alongside 39-year-old Don Jr. and 33-year-old Eric.

Trump did a phone interview with MSNBC 20 minutes after Barron's birth, the NY Daily News reported.

He's so much like his dad that Melania Trump nicknamed him "Little Donald." "He is a very strong-minded, very special, smart boy," Melania Trump told Parenting Magazine. "He is independent and opinionated and knows exactly what he wants ... He is a mixture of us in looks, but his personality is why I call him little Donald."

In that same interview, Melania Trump referenced the fact that Barron "[had] his own floor" to live and play in.

His dad's going to settle in the Oval Office, but Barron is staying in New York City — for now. He's going to finish out the school year in Manhattan, the New York Post reported.

He attends the Columbia Grammar and Preparatory School, where tuition for elementary students runs about $47,000 annually.

Barron speaks at least two languages — English and Slovenian, as Melania Trump told Us Weekly last year.

He and his dad hang out by watching sports together. "They like to watch football, golf, of course, tennis, baseball," Melania Trump said. "It's great because my husband played golf, baseball and tennis when he was younger and Barron is playing now, so they both know it and they can discuss the sport and what's going on."

When he moves to D.C., Barron will be the first First Son in the White House since John F. Kennedy, Jr. in 1963, CNN reported.