Đàng Trong
Đàng Trong (, lit. "Inner Circuit"), also known as Nam Hà (, "South of the River"), was the South region of Vietnam, under the rule of the Nguyễn lords, later enlarged by the Vietnamese southward expansion. The word "Đàng Trong" first appeared in the "Dictionarium Annamiticum Lusitanum et Latinum" by Alexandre de Rhodes. Contemporary European sources called it Cochinchina or Quinan.