The new Plenipotentiaries were Tsai, Prince of I., a cousin of the Emperor, and Muh-yin, President of the Board of War: with whom was joined Hang-ki, a member of the previous commission.

The plenipotentiaries from Spain were Don Henry Henriques, Don John de Cardenas, and the Doctor Maldonado; those from Portugal, Ruy de Sosa, his son Don John, and the doctor Ayres de Almada.