Yeongjo had only two sons. His elder son did in [[1728]] at the age of ten. After his second son, [[Crown Prince Sado|Sado]], was born, the latter was named Crown Prince at the age of one. Twenty-six years later, in the course of some political conflict, Yeongjo killed the Crown Prince; the details of this conflict, and the reasons underlying it, remain unclear. | Yeongjo had only two sons. His elder son did in [[1728]] at the age of ten. After his second son, [[Crown Prince Sado|Sado]], was born, the latter was named Crown Prince at the age of one. Twenty-six years later, in the course of some political conflict, Yeongjo killed the Crown Prince; the details of this conflict, and the reasons underlying it, remain unclear. |