The picture posted here showing a brief North Korea leader Kim Jong Il's family tree was saved from a website that once I accidently visited, unfortunately, I can't find its URL currently even after intensive Google search. If anyone runs across it somewhere else, kindly drop me a tip and I'd like to give the credit to its creator. Thx!
There is no official information available about the marital history of the leader of the highly secretive government, but Kim is widely believed to have been married three times. His last wife, Ko Young-hee (or Ko Yong Hi), reportedly died of cancer in 2004. Since then, Kim has been living with Kim Ok, who had served as his personal secretary since the 1980s.
Kim was also married to Kim Young-suk, although they have been estranged for some years. He has a daughter, Kim Sul-song (born 1974), from this marriage. His eldest son, Kim Jong-nam, was born to Song Hye-rim in 1971. With Ko Yong-Hi, he had another son, Kim Jong-chul, in 1981, and there is reported to be a second son, Kim Jong-un (name also spelled "Jong Woon" or "Jong Woong"). His second favorite mistress, Kyung-hwa Chang-ok had three children by him before she defected to South Korea in 2002. As of 2005, Kim Jong-chul was said to be his heir apparent.