Taejong helped his father and founded a new dynasty by assassinating powerful officials such as Jeong Mong-ju, who remained loyal to the Goryeo dynasty.
Taejong menolong ayahandanya mendirikan dinasti yang baru dengan membunuh para pejabat Konfusian yang berkuasa seperti Jeong Mong-ju, yang tetap setia kepada Dinasti Goryeo.