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
did Ban Ki-moon's children marry?
Seon-yong's spouse is a native of India.
What other family members does Ban Ki-moon have besides his wife and three children?
Ban's brother Ban Ki-sang and nephew Bahn Joo-hyun
Why did Ban Ki-sang and Bahn Joo-hyun have charges
They were indicted on U.S. charges that they engaged in a scheme to bribe a Middle Eastern official in connection with the attempted sale of a building complex in Vietnam.

Question: Is there anything else interesting about his family?
Self-contained rewrite: Is there anything else interesting about Ban Ki-moon family?