 An untold number of Korean Catholics also met their end (estimations run around 10,000), many being executed at a place called Jeoldu-san in Seoul on the banks of the Han River.In late June 1866, one of the three surviving French missionaries, Father Félix-Claire Ridel, managed to escape via a fishing vessel, thanks to 11 Korean converts, and made his way to Chefoo (today known as Yantai), China in early July 1866.Fortuitously in Tianjin at the time of Ridel‘s arrival was the commander of the French Far Eastern Squadron, Rear Admiral Pierre-Gustave Roze.