The, also known as the Great Martyrdom of Nagasaki, was the execution of 55 foreign and domestic Catholics killed together at Nishizaka Hill in Nagasaki, Japan, on 10 September 1622. Beginning in 1614, Christianity was banned in Japan and a smuggling incident concerning two foreign missionaries prompted the killing. The mass execution was part of the persecution of Christians in Japan by Tokugawa Hidetada, the second Shogun of the Tokugawa shogunate.
A nationwide ban on Christianity was promulgated in 1614 during the shogunate of Tokugawa Hidetada. In Nagasaki, several measures were taken to implement this ban. Tronu Montane, a scholar at the Kansai Gaidai University described these measures as a "straightforward policy of elimination of Christians that had a dramatic impact on Nagasaki Christian community".
After the death of Tokugawa Ieyasu – the first Shogun of the Tokugawa shogunate – in 1616, the persecution of Christians in Japan focused on the promotion of apostasy and the elimination of foreign missionaries. This policy was implemented in Nagasaki by Gonroku, the bugyō from 1615 to 1625. Large-scale executions were not uncommon parts of this policy of Christian elimination: 23 Christians had been concurrently executed in Edo (Tokyo) in August 1613; 43 in Kuchinotsu, Arima, in November 1614; and 53 in Kyoto in 1619.
The "Great Genna Martyrdom" took its name from the Japanese era name of Genna, which denotes the time from July 1615 until February 1624; the mass killing is also known as the Great Martyrdom of Nagasaki. It was preceded by an incident with the Christian Japanese merchant Hirayama Jōchin, who had received an official seal to trade with Manila. In 1620, Hirayama tried to smuggle two Mendicant priests disguised as merchants (and Luis Flores) on his way back from Manila into Japan, but before they could enter Japanese territory, his ship was attacked by Dutch and English forces and its cargo was confiscated. The crew of the ship, including the priests, were imprisoned in Hirato.
Hirayama claimed that his official seal should grant his ship protection; the Dutch and English, however, argued that the presence of priests forfeited this protection. After two years of imprisonment, the priests confessed that they were indeed Christian missionaries. This confession resulted in the burning alive of the two priests and Hirayama as well as the decapitation of the remaining crew in Nagasaki on 19 August 1622.
Due to this smuggling incident, the prosecution of Christians was intensified and the bugyō Gonroku ordered the killing of all priests imprisoned in the Nagasaki and Ōmura prisons as well as some of their followers. In total, 55 Christians were to be executed. The execution of these 55 Christians, now known as the Great Genna Martyrdom, occurred on 10 September 1622 on Nishizaka Hill in Nagasaki. It thus happened at the same place as the crucifixion of the 26 Martyrs of Japan on 5 February 1597.
An early account of the execution is provided in a 1624 pamphlet by Andres de Parra printed in Madrid. The pamphlet in Spanish is titled ('A Brief Account of the Great and Rigorous Martyrdoms which Last Year, 1622, Were Inflicted in Japan on One Hundred and Eighteen Illustrious Martyrs, Drawn Principally From the Letters of the Fathers of the Society of Jesus Who Reside There, and From What Has Been Reported by Many Persons of that Kingdom, Who Arrived in Two Ships at the City of Manila on 12 August 1623'). The pamphlet was translated in part into English in 1927.
The Imago primi saeculi, a 1640 book about the Society of Jesus, contains a description of the Great Genna Martyrdom:
While this account implies that the condemned in principle could have untied their restraints, this would not have resulted in them being able to flee. Condemned who untied their restraints and attempted to flee would have been captured by the executioners and thrown into the flames again.
During the Great Genna Martyrdom, 55 people were executed. Of them, 24 or 25 were burned, while 30 or 31 were beheaded. The 24 or 25 people executed by burning consisted of two Jesuit priests, eight Jesuit Portuguese: irmãos, two Franciscan priests, five Dominican priests, two Dominican Portuguese: irmãos, two lay members of the Fraternity of the Rosary and three lay catechists. The 30 or 31 people executed by beheading were lay Kirishitans, numbering 27 Japanese and four Koreans. Five of those killed were children aged 3 to 12 years old. All 55 executed Christians were beatified by Pope Pius IX as part of the beatification of the 205 Martyrs of Japan on 7 July 1867. Their feast day is September 10, the day of the execution.
The Dominicans killed included Angelo Orsucci also known as Angel Ferrer Orsucci (b. 1573), (b. 1578), José Salvanés de San Jacinto (b. 1580), (b. 1578), (b. 1567), Juan Nagata Magoshiro and Tomás del Rosario as well as three Japanese men admitted to the Third Order of Saint Dominic: Diego Chinba, Domingo Tanda and Paulo Nagaishi. The Franciscans killed included Fray Vicente de San José (b. 1597) also known as Vicente Ramíre, (b. 1585), Pedro de Ávila (b. 1591) and León Satzuma. The Jesuits killed included the Jesuit missionary Charles Spinola, as well as nine Japanese Jesuits: Antonia Sanga, Sebastian Kimura, Antonio Kyūni, Pedro Sanpō, Gonzalo Fusai Chōzō, Miguel Satō Shunpō, Tomé Akahoshi, Luis Kawara Rokuemon and Juan Chūgoku.