Genghis Khan was an epic man who spread through all of Middle-earth. He is known to be the man who killed (and had sex with) the most people, having raped and murdered 95% of Hyrule, Gamelon, and the Mushroom Kingdom.
Khan was born in 1000. He killed the king of Mongolia at age four, and was crowned King of Mongolia. At age 7, he single-handedly invaded Hyrule, killing all those who stood in his path.
He was feared not only by humans, but Elves, orcs, and all of the species existing at the time, bringing pride to the human race.
Soon after Weegee was born in the Mushroom Kingdom, his father was killed by Khan, Weegee swore vengence.
40 years later, Khan was the first to be killed by Weegee's evil rampage.