Their mother, Kim Jong-suk, is said to have died from hemorrhaging while giving premature birth caused by her distress over Kim Il-sung’s love affair with Kim Song-ae.
Se dice que la madre de los dos, Kim Jong-suk, murió de una hemorragia al dar a luz prematuramente a consecuencia de su angustia por la relación amorosa de Kim Il-sung con Kim Song-ae.