The Kyujanggak, also known as Gyujanggak, was the royal library of the Joseon Dynasty. It was founded in 1776 by order of King Jeongjo of Joseon, at which time it was located on the grounds of Changdeokgung Palace. Today known as Kyujanggak Royal Library or Kyujanggak Archives are maintained by Kyujanggak Institute for Korean Studies at the Seoul National University, located in Sillim-dong, Gwanak-gu in Seoul.