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Kim Jong Un's sister is making a landmark trip to South Korea for the Olympics - here's what we know about North Korea's mysterious 'princess' who could help rule if he dies

Michelle MarkFeb 8, 2018, 23:32 IST

Kim Yo Jong, sister of North Korean leader Kim Jong Un, attends an opening ceremony of a newly constructed residential complex in Ryomyong street in Pyongyang, North Korea April 13, 2017.REUTERS/Damir Sagolj

In a rare show of diplomacy between the two Koreas, Kim Jong Un's younger sister is traveling to South Korea on Friday for the opening ceremony of the 2018 Winter Olympics in Pyeongchang.

Her journey will be a milestone of historic significance - she'll be the first member of North Korea's ruling family to visit the south since the Korean War in the 1950s, according to The New York Times.

Like her brother, and much of the rest of their family, few details are known about Kim Yo Jong and the life she lived before reaching a prime leadership role in the North Korean government.

Here's what we know about her so far: