In January 1968, Kim Yo Jong's grandfather, founding North Korean president Kim Il Sung, sent a squad of North Korean commandos to Seoul who tried unsuccessfully to kill then-president Park Chung-hee.
While President Trump and Vice President Pence proceed to use severe rhetoric when discussing relations with North Korea, the governments of the two Koreas are continuing to take diplomatic steps to ease tensions that have existed between them for decades.
Japanese Prime Minister Shinzo Abe told South Korean President Moon Jae-in on Friday that he should be wary of North Korea's "charm offensive" as the leaders met for a one-hour summit in Pyeongchang, a few hours before the town saw the opening ceremony of the Winter Olympic Games.
A spokesperson for the vice president said that Pence did not come across the North Korean delegation during the reception.
The recent detente, anchored by South Korea's hosting of the Winter Olympic Games that began on Friday, came despite an acceleration in the North's weapons programs past year and pressure from Seoul's allies in Washington.
There was a huge cheer from the crowd at the end of the parade when a unified Korea team entered the arena, with their flag held by Hwang Chung-gum, of North Korea, and Won Yun-jong of South Korea. But North Korea's record on human rights and the growing threat from its nuclear weapons program appeared out of mind.
Pence is pushing South Korea to adopt a more hawkish stance toward the North and warning against North Korean "propaganda" efforts at the games.
Yo-jong's visit to the South was the first visit by a member of the ruling Kim family ever since the Korean War ended in 1953. The delegation bid farewell to late South Korean President Kim Dae-jung.
The North Korean artists performed Thursday in Gangneung, a coastal city that will host the skating, hockey and curling events during the games, and are to perform again in Seoul.
US Vice President Mike Pence, also in South Korea for the Olympics, has said the United States and South Korea were closely aligned in their approach to dealing with North Korea.
Choe Hwi, chairman of the National Sports Guidance Committee, and Ri Son Gwon, chairman of the Committee for the Peaceful Reunification of the Fatherland, also attended the lunch meeting.
"We have no intention to meet the USA side during our visit to South Korea", Jo said in a terse statement reported by state-run news agency KCNA.