Person1376 – 1445
Choe Yun-deok
General who drove out the Jurchens on the upper Yalu and set up the Four Commanderies
In 1419 he took part in the Expedition to Tsushima with Yi Jong-mu. In 1433, as army commander of Pyeongan, he attacked the Jurchen along the Pajeo River beyond the Amnok (Yalu), which led to the establishment of the Four Commanderies on the upper Amnok. He later rose through Right to Left State Councillor.
