Conversation so far:
who were Ban Ki-moon's family?
Ban Ki-moon married Yoo Soon-taek in 1971.
did Ban Ki-moon have children
Yes, 3
what were the names of Ban Ki-Moon's children
Seon-yong, Woo-hyun, and Hyun-hee

Question: did the children marry?
Self-contained rewrite: did Ban Ki-moon's children marry?