Kim Jong Un's arrival in China for his first ever multilateral meeting was always going to make headlines.
But it was the smartly-dressed girl standing just behind him as he exited his armoured train which caught Korea watchers' attention: Kim Ju Ae, the North Korean leader's daughter.
According to South Korea's spy agency, Miss Kim is her father's most likely successor.
But details - including her exact age - are thin on the ground. So what exactly do we know?
Miss Kim has, for a number of years, been believed to be the second of Kim Jong Un's and his wife, Ri Sol-Ju's, three children. The exact number, and their order, is by no means certain however: Kim is very secretive about his family, only introducing his wife to the public after they had been married for some time.
