Taejo of Goryeo
This myth is very similar to the "Gunung Bonuli". A supernatural being is killed by the bow of the main character at the request of a Dragon King, who both give up their daughter for marriage to the main character. The name of the main characters' eldest sons are the similar: Yong Geon and Wang Geon. Moreover, Wang Geon is the name of King Taejo of Goryeo. The surname of Wang Janggun and his sons are 'Wang'; the surname of the imperial family of the Goryeo Dynasty is 'Wang'.