Kim Jong-nam (born May 10, 1971, Pyongyang, North Korea), is the eldest son of Kim Jong-il, ruler of the Democratic People's Republic of Korea (North Korea). Until recently it was believed that he was being groomed as Kim Jong-il's successor; recent reports suggest he has fallen from favour. Kim was born in Pyongyang, to Song Hye Rim, one of three women known to have had children with Kim Jong-il. Wikipedia
When Kim Il Sung, the "president-for-life" of North Korea, turned sixty-two, in 1974, he decided that his son Kim Jong Il would succeed him. www.itcc.org/article.asp?artid=182
The definitive Wikipedia entry for Kim Jong-Nam. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Kim_Jong-nam