Seoul (Hanyang) (1866) — the same event in Dallet, History of the Church in Korea and Griffis, Corea, the Hermit Nation

Dallet, History of the Church in Korea: The regent signs the edict to execute Western bishops and believers, deciding to apply the old law banning…

What each source says

Dallet, History of the Church in Korea · AD 1866 · Seoul (Hanyang)

The regent signs the edict to execute Western bishops and believers, deciding to apply the old law banning Christianity

Quoi qu'il en soit, il céda, et signa l'arrêt de mort
Location: p.525–526

Griffis, Corea, the Hermit Nation · AD 1866 · Seoul

The court decided to eradicate Catholicism, ordering believers beheaded on the Han River bank, even women and children executed.

even children were ordered to the death.
Location: p.386

Place: Séoul (서울)

Show on the map — open Dallet, History of the Church in Korea