Taesangwang

Taesangwang or Taesanghwang (literally "King Emeritus the Great" or "Emperor Emeritus the Great") is the title for a retired king or Korean Emperor in Korean history. Sometimes the term is called Sangwang or Sanghwang.

History
Taejo of Goguryeo called himself "Taejo the Great", who is the first retired king on the Samguk Sagi to retired and abdicated in favour of his son Suseong as a successor.

The last retired emperor as the Taesanghwang was Emperor Gojong in Korean Empire.

Goryeo

 * Chungryeol
 * Chungseon
 * Chungsuk

Joseon

 * Taejo
 * Jeongjong
 * Taejong
 * Danjong
 * Sejo

Korean Empire

 * Gojong