Deoksu Jang clan
The Deoksu Jang clan () is one of the bon-gwan or Korean clans from Kaepung County, North Hwanghae Province.The clan was founded by , an Arab-Uiguric Muslim civil servant who served in the Goryeo court. According to the research held in 2015, the clan has 24,185 members. Origin. Jang Sun Ryong entered Goryeo as a fatherly master of Princess Jeguk, daughter of Kublai Khan, who was married off to Chungnyeol of Goryeo.