Editing Sejong the Great (section)

=== Selection as heir to the throne ===
As Taejong's eldest son, [[Grand Prince Yangnyeong]] was to inherit the throne. However, Taejong, as well as court officials, increasingly deemed Yangnyeong unsuitable for the role due to his erratic and irresponsible behavior.{{sfnp|Choi 1|n.d.}}{{sfn|태종실록 35권, 태종 18년 6월 3일 임오 1번째기사}} In a series of escalating events involving Yangnyeong's affair with Eori, a concubine of Kwak Sŏn, Yangnyeong was ultimately deposed as crown prince.

In mid-1418, court officials petitioned Taejong to consider a new candidate for the throne.{{sfnp|Choi 1|n.d.}}{{sfn|태종실록 35권, 태종 18년 6월 3일 임오 1번째기사}} Following primogeniture, Taejong initially considered Yangnyeong's eldest son for the role. However, the officials objected and insisted that Taejong select a wise person as heir apparent. King Taejong asked the officials to propose an alternative. According to the [[Veritable Records of the Joseon Dynasty|Veritable Records]], they gave an indirect response: "The father knows his sons best, as the king knows his subjects best."{{Efn|{{Korean|hangul=아들을 알고 신하를 아는 것은 군부(君父)와 같은 이가 없습니다.|labels=no}}}} Taejong judged his second son, [[Grand Prince Hyoryeong]], to have a disposition too soft for the role, and would be unable to drink with emissaries from Ming dynasty to entertain them.{{sfn|태종실록 35권, 태종 18년 6월 3일 임오 1번째기사}} He then proposed Chungnyeong, whom he felt was intelligent and sharp in matters of politics. The officials welcomed the decision and confirmed that Chungnyeong had been their preferred choice.{{sfnp|Choi 1|n.d.}}{{sfn|태종실록 35권, 태종 18년 6월 3일 임오 1번째기사}} On 8 July 1418, Chungnyeong was made crown prince of Joseon.{{Sfnp|Yi|2007|p=18|pp=}}