According to the South Korean National Intelligence Service (NIS), North Korean leader Kim Jong Un has an additional younger child whose gender remains unknown, alongside his daughter Kim Ju Ae.
Intelligence Assessment on Kim Ju Ae and Her Sibling
The NIS stated that Kim Ju Ae, who frequently appears at high-profile public events alongside her father, has a younger sibling whose gender has not been verified by intelligence agencies. Because of the extreme secrecy maintained by the North Korean regime, verifying family structures remains exceptionally difficult, according to the NIS.
Preparation for Future Leadership
South Korean intelligence assesses that Kim Ju Ae is currently undergoing a preparation process to become the future leader of North Korea. The NIS points to her repeated appearances at major military and political gatherings—such as missile tests and military parades since 2022—as clear indicators of this succession trajectory.
Did you know? North Korean state media has referred to Kim Ju Ae using the term “hyangdo,” which translates to “rehberlik eden büyük kişi” (the great person who guides)—a title that was used for leaders before.
Investigation Into an Older Brother
Alongside the younger sibling, the NIS is actively investigating whether Kim Ju Ae also has an older brother. However, the agency notes that even if the existence of an older brother is confirmed, current intelligence suggests he is not viewed as holding a position suitable for succession.
Historical Context of the Kim Family Line
The exact number and birth order of the children born to Kim Jong Un and his wife, Ri Sol Ju, have long been shrouded in mystery. Previous NIS assessments from 2023 indicated that the couple likely has three children, consisting of Kim Ju Ae, an older brother, and a younger sibling of unverified gender. The ruling family’s legitimacy in North Korea relies heavily on the “Paektu soyu” as described in the sources, making details of descendants a matter of intense state secrecy.

Frequently Asked Questions
What has the South Korean intelligence revealed about Kim Jong Un’s children?
According to the NIS, Kim Jong Un has a daughter named Kim Ju Ae who is viewed as the potential successor, a younger sibling of unknown gender, and possibly an older brother who is not in line for succession.
When did Kim Ju Ae first appear in public?
Kim Ju Ae first appeared publicly in 2022 when she joined her father to observe the test-firing of an intercontinental ballistic missile.

What title has North Korean state media used for Kim Ju Ae?
State media has applied the term “hyangdo,” meaning “rehberlik eden büyük kişi”, to Kim Ju Ae.
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