King Sejong was not born inside a palace. The Annals of King Sejong record that he was born in 1397 as the third son of Yi Bang-won, the future King Taejong, at the family's pre-accession residence in Junsubang, the capital. Historians place Junsubang around present-day Tongin-dong and Hyoja-dong, but no building survives that can confirm the house's exact position or form.
A prince's home and a king's palace
At the time of Sejong's birth, his father had not yet become king. The birthplace was therefore a private family residence, not a royal palace. That distinction moves royal history out of palace compounds and into an ordinary neighborhood street.
What a marker can and cannot do
A marker on or near Jahamun-ro commemorates Sejong's birthplace, but no nearby hanok should be treated as the original house. Rather than identifying one precise room, the marker preserves the broader historical connection between the district and the king's early life.
See the neighborhood before thinking of Hangul
Before remembering Sejong only as the creator of Hangul, Korea's alphabet, imagine him as a person born in the residential quarter west of Gyeongbokgung. Walking its market and alleys while looking toward the palace wall makes clear that royal history also began on the geography of daily life.