Kim Jong-un is the third youngest son of former North Korean dictator Kim Jong-il, who died in 2011. But because North Korea is so secretive, no comprehensive biography has ever been released. No one outside of Pyongyang really knows his precise birth date (most say it’s Jan. 8 -- 1982, 1983 or 1984) or who his mother is.
The only information on his early life has come from defectors or witnesses who have seen him abroad, including those in Switzerland, where Kim was sent to study at the $25,000-a-year International School of Berne. In 2010, his birthday was declared a public holiday.
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