Columbia subject headings:
Harvard subject headings:
Korea--History--Chosŏn dynasty, 1392-1910.
Korea--Kings and rulers--Biography.
Poisoning--Korea--Chosŏn dynasty, 1392-1910.
Princeton subject headings:
Korea--History--Chosŏn dynasty, 1392-1910.
Korea--Kings and rulers--Assassination.
Korea--Kings and rulers--Succession.
Korea--Politics and government--1392-1910.