His daughter dated my roommate in college. I always thought he was just making it up. She was a very attractive, nice, intelligent woman (they met in Physics class at MIT), but I never believed that she was from the ruling family of Thailand. She never mentioned that her father was a king and never acted any different than the rest of us commoners. One summer, I read about their wedding in the paper. He wasn't BSing…
https://en.wikipedia.org/wiki/L%C3%A8se_majest%C3%A9_in_Thai...
(also mentioned by ddeck here)