Getty Images Melania Trump offered some very rare insight into her only son, Barron Trump, and his relationship with a special family member. The 56-year-old third wife of Donald Trump gave birth to Barron in 2006. Over the years, there have been questions about how the youngest - and arguably most private - of the president's five children interacts with his older siblings, Ivanka, Donald Jr., Eric and Tiffany Trump. However, in written answers to USA Today, Melania addressed his bond with a different family member - her mother, Amalija Knavs.