十Christian Japan
Life

Giuseppe Chiara (Okamoto San'emon) and the Rubino Groups

A Sicilian Jesuit who slipped into Japan in 1643 to win back the fallen Ferreira, broke under torture himself, and lived 42 years as a prisoner in Edo under the name Okamoto San'emon.

6 min read1,371 words11 sourcesTap any name, place or term to learn moreTimeline
Plan of the Kirishitan yashiki, the "Christian mansion" prison in Koishikawa, Edo, where Chiara lived from 1646 until he died in 1685.
Plan of the Kirishitan yashiki, the "Christian mansion" prison in Koishikawa, Edo, where Chiara lived from 1646 until he died in 1685. Old Japanese plan as reproduced in E. Papinot’s dictionary of Japan; Commons dates it only “before 1850” and the original is not identified (Unverified). Public domain (PD-Japan). Wikimedia Commons (licence checked on the Commons file page, 19 Oct 2026)

In 60 seconds

The opening line of each part of the story.

  1. Two silver coinsOn 27 June 1643 islanders on Kajime Ōshima, a small island off the coast of Chikuzen in northern Kyushu, saw ten men come ashore.
  2. Eight lettersChiara was born at Chiusa Sclafani, a hill town near Palermo, in 1602 or 1603 (Disputed).
  3. The first Rubino groupThe plan was organized by Antonio Rubino, an Italian named Visitor of Japan and China in 1639.
  4. The second Rubino groupThey were Pedro Marques, an old Japan hand born in 1575; Alonso de Arroyo from Andalusia; the Lombard mathematician and astronomer Francesco Cassola; Giuseppe Chiara; Lourenço Pinto, born in Nagasaki to a Chinese father and a Luso-Japanese mother; the Japanese Brother André Vieira; and four others.
  5. The pitThe prisoners were hung in the pit.
  6. Okamoto San'emonThe shogunate kept him, and gave him a whole borrowed life.
  7. A stone that travelledHis gravestone did not stay put.
  8. Fact check: Chiara, Sidotti …These three names are often tangled.

Two silver coins

On 27 June 1643 islanders on Kajime Ōshima, a small island off the coast of Chikuzen in northern Kyushu, saw ten men come ashore. They wore Japanese clothes, carried swords and had shaved heads like any traveller. But something was wrong. The strangers begged the islanders not to tell anyone they had come, and pressed two silver coins into their hands. The islanders took the coins and went straight to the coastguard post.

Among the ten was a Sicilian Jesuit of about forty, Giuseppe Chiara. He had come to Japan for a reason that sounds like the plot of a novel, and later became one. He had come to rescue a fallen man: the former Jesuit leader , who had given up the faith in the pit ten years before.The answer is that he became, almost exactly, the man he came to save.

On the mapWhere this happened
Every place in the atlas below that has coordinates. Gold pins are approximate or town level. Full atlas and pin sources

Eight letters

Chiara was born at Chiusa Sclafani, a hill town near Palermo, in 1602 or 1603 ().He wanted the missions badly. From January 1623 he wrote eight letters to his superiors begging to be sent to the Indies, and he entered the Jesuits at Naples on 2 September 1623.

On 13 April 1635 he sailed from Lisbon with the young Neapolitan Jesuit Marcello Mastrilli.Their voyage went badly. Dutch ships forced them off course to , where they arrived on 31 July 1636. Mastrilli went on to Japan and was killed there in 1637.Chiara was shipwrecked off the Philippines on the way to and only reached Macao in 1639. There he studied Japanese.

By then the news from Japan was all of torture and apostasy. Ferreira's fall in 1633 had shaken the Jesuits of Asia, and some resolved to go to Japan to make up for it.Chiara was one of them.

The first Rubino group

The plan was organized by Antonio Rubino, an Italian named Visitor of Japan and China in 1639.He decided to go himself after the Portuguese embassy from Macao was executed in Japan in 1640.

Rubino, Antonio Capece, Diego de Morales, Francisco Marques and the Polish Jesuit Alberto Mecinski, with four servants, left Manila in July 1642 and were found on Koshiki island off Satsuma in August.: one study gives 6 August 1642 (Kan'ei 19.7.11), Japanese Wikipedia 11 August (Kan'ei 19.7.16).Taken to , they were questioned, paraded, and hung in the pit early in 1643. All but one servant died as martyrs. Rubino died on 22 March 1643.

Three months after Rubino died, the second group stepped ashore on Kajime Ōshima with their two silver coins.

The second Rubino group

They were Pedro Marques, an old Japan hand born in 1575; Alonso de Arroyo from Andalusia; the Lombard mathematician and astronomer Francesco Cassola; Giuseppe Chiara; Pinto, born in Nagasaki to a Chinese father and a Luso-Japanese mother; the Japanese Brother André Vieira; and four others.

They were not judged in Nagasaki. That summer a Dutch ship, the Breskens, had appeared off Nanbu in the north, and the shogun suspected a link. So the prisoners were sent to Edo, leaving on 27 August 1643.There they were questioned at the residence of the chief inquisitor , and also at the houses of the great lords Sakai Tadakatsu and Hotta Masamori. Iemitsu himself attended.

And there they finally met Ferreira, the man they had come for. He was not waiting to be rescued. He was the interpreter.

The pit

The prisoners were hung in the pit. Japanese Wikipedia, citing a Chōfu city pamphlet, says Chiara gave up after three days.Inoue recorded that every member of the group renounced the faith.Their confession was copied and sent round to the .Chiara and Cassola also told the inquisitor the route they had planned, by way of "Riyanhou," the Chinese port of Ningbo; Inoue passed this on to the Sō family of Tsushima in a letter of 1644.

The Dutch prisoners of the Breskens were brought face to face with them on 20 October 1643, to test whether the two groups were connected.Bándy adds a strange coda: after that, two of the apostate former Jesuits took back their apostasy and refused to join a Buddhist sect. He does not name them.

Okamoto San'emon

The shogunate kept him, and gave him a whole borrowed life. He received the name, the sword and even the widow of a condemned samurai, Okamoto San'emon, plus a stipend of ten rations and silver, and two servants.The same thing had been done to Ferreira, who was made to live with an executed merchant's widow.

He was held first at Tenmachō, then at Iidamachi. From 1646 he lived in the , the "Christian mansion" prison built in Inoue's lower residence at Koishikawa, in today's Kohinata, Bunkyō ward.He would never leave it.

On 12 June 1658 he signed a declaration. In 1674 he was ordered to write an account of Christianity, which ran to three volumes; Japanese Wikipedia calls it Tenshukyō taii. In November 1675 he was questioned on whether he had written it sincerely, and in 1677 an inventory was made of his books.Japanese Wikipedia adds that he refused to register as a temple parishioner, a quiet refusal in a country where every non-Christian had to be attached to a temple.

He died in Edo on 24 August 1685 (Jōkyō 2.7.25), aged about 82, after 42 years as a prisoner. He was cremated and buried at Muryōin in Koishikawa under the Buddhist name Nyūsen Jōshin Shinji. "Nyūsen" may echo "Giuseppe."His Japanese "wife" outlived him by ten years and died on 27 February 1695, aged 74.

A stone that travelled

His gravestone did not stay put. Moved to Zōshigaya in 1909, it was pulled by handcart on 3 June 1943 by the Salesian Father Clodoveo Tassinari to the Salesian seminary in Nerima, and taken in 1950 to the Salesian seminary in Chōfu.The stone is Izu andesite, 160.7 cm tall.The top is shaped like a priest's hat.Chōfu city made it a cultural property on 29 January 2016, and a memorial stele to "Father Joseph Okamoto San'emon" was set up at Denzūin in 1977.

So the rescuer ended as the rescued had: a renamed, married, watched man who wrote what the shogunate asked him to write. The difference is that his stone, at least, now stands among priests.

Fact check: Chiara, Sidotti and Sawano Chūan

These three names are often tangled. Here is what the sources say.

  • Sawano Chūan was Cristóvão Ferreira, the Portuguese Jesuit who apostatized in 1633. Not Chiara.
  • Giuseppe Chiara came with the second Rubino group in 1643, apostatized, became Okamoto San'emon, and died in 1685.
  • Giovanni Battista Sidotti was a Sicilian secular priest who landed alone on Yakushima in 1708, never apostatized, and died in the same yashiki in 1714.
  • The Edo-period writer Honda Toshiaki confused Chiara and Sidotti.
  • freely modeled the hero of Silence on Chiara. It is a novel.
  • Excavators in 2014 judged that a skeleton buried full length in a coffin was Sidotti; Chiara was cremated at Muryōin.
Timeline

The dated story

Every dated row in this story, with its source.

  1. 1602 or 1603Chiara born
  2. Jan 1623First of eight letters asking for the Indies
  3. 2 Sep 1623Enters Society, Naples
  4. 13 Apr 1635Sails from Lisbon with Mastrilli
  5. 31 Jul 1636Forced to Manila
  6. 17 Oct 1637Mastrilli beheaded in Japan
  7. 1639Chiara reaches Macao; Rubino named Visitor
  8. Aug 1642First Rubino group caught on Koshiki
  9. 22 Mar 1643Rubino dies in the pit, Nagasaki
  10. 27 Jun 1643Second group lands on Kajime Ōshima
  11. 27 Aug 1643Prisoners sent to Edo
  12. 20 Oct 1643Confronted with Breskens crew
  13. 1644Inoue's letter to the Sō family on Chiara's route
  14. 1646Moved to Kirishitan yashiki
  15. 12 Jun 1658Signs declaration
  16. 1674Writes three-volume account
  17. 24 Aug 1685Dies
  18. 27 Feb 1695His "wife" dies, aged 74
  19. 1909, 1943, 1950Gravestone moved to Zōshigaya, Nerima, Chōfu
  20. 25 May 1977Memorial stele at Denzūin
  21. 29 Jan 2016Stone designated cultural property
Atlas

Every place in this story

Every place in this story. Each pin is marked as an exact site, town level or approximate. Rows without coordinates are listed as not pinned.

Exact siteApproximate or town level
PlaceWhy it matters hereCoordinatesCoordinate source
Chiusa Sclafani, SicilyBirthplace37.68000, 13.27000Approximate 37.68, 13.27 (approx.)
ManilaDeparture point of both groups14.59096, 120.97465Town level OpenStreetMap relation 103707 (Intramuros) via Nominatim
MacaoLanguage study22.17576, 113.55141Town level OpenStreetMap relation/1867188 (澳門)
Koshiki islands, SatsumaFirst group captured31.84194, 129.88504Approximate OpenStreetMap relation/6677223 (上甑島), island level
Kajime Ōshima, ChikuzenSecond group landed33.90000, 130.43000Approximate 33.90, 130.43 (approx.; Unverified)
Kirishitan yashiki, KoishikawaPrison 1646 to 168535.71710, 139.73460Approximate 35.7171, 139.7346
Muryōin, KoishikawaCremation and original gravenot pinnedUnverified
Salesian seminary, ChōfuGravestone today (Fujimi-chō 3-21-12)35.66179, 139.54264Approximate OpenStreetMap node/2147418464 (サレジオ修道院); stone not separately pinned
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Where to go from here

Full record

Key facts

FactValueStatusSource
BornChiusa Sclafani, Sicily; 1602 or 1603Disputed (year)
Entered SocietyNaples, 2 Sep 1623Solid
Sailed with Mastrilli13 Apr 1635, LisbonSolid
Landed27 Jun 1643, Kajime Ōshima, ChikuzenSolid
QuestionedEdo, with Iemitsu present; Ferreira interpretingSolid
Apostasy1643, Edo, under Inoue Masashige; after 3 days in pit (pamphlet)Solid / days Unverified
Martyrdom rumourMarini letter, Tonkin 1649Disputed (false)
Japanese nameOkamoto San'emonSolid
PrisonTenmachō, Iidamachi, then Kirishitan yashiki from 1646Solid
WroteThree-volume account, 1674Solid
Died24 Aug 1685, EdoSolid
GraveMuryōin; stone now at Salesian seminary, ChōfuSolid
First group landing6 or 11 Aug 1642Disputed
Two apostates recant after Oct 1643UnnamedUnverified (identities)
Glossary

Words in this story

daimyo 大名
A regional lord. Some daimyo became Christians; the first was Ōmura Sumitada.
Kirishitan 吉利支丹 / キリシタン
From the Portuguese Christão. The historical Japanese term, from Xavier’s time on, for Catholic Christians and their religion.
Sources

Footnotes

  1. 1 Giuliano Bertuccioli, "CHIARA, Giuseppe," Dizionario Biografico degli Italiani 24 (1980). source link)
  2. 2 Japanese Wikipedia, "ジュゼッペ・キアラ." source link
  3. 3 Kimura Kanako, "日本のキリスト教禁制による不審船転送要請と朝鮮の対清・対日関係," Shigaku zasshi 124-1 (2015). source link
  4. 4 Japanese Wikipedia, "アントニオ・ルビノ." source link
  5. 5 Hubert Cieslik, "The Case of Christovão Ferreira," Monumenta Nipponica 29:1 (1974), p. 16 and n. 78. source link
  6. 6 Bunka Isan Online, "ジュゼッペ・キアラ神父墓碑." source link
  7. 7 Bándy György, "Christovão Ferreira, egy jezsuita viszontagságai Japánban a XVII. században," Teológiai Fórum 2024/2, pp. 100-115, at pp. 108-111 (Mastrilli; "Syovan"; second Rubino group, citing Cieslik p. 32; Breskens; the two recantations).
  8. 8 Stefania Nanni, "SIDOTI, Giovan Battista," Dizionario Biografico degli Italiani 92 (2018). source link)
  9. 9 Christian Today Japan, 15 Apr 2016. source link
  10. 10 Japanese Wikipedia, "ペドロ・マルケス." source link
  11. 11 Article on Alberto Mecinski, Ignatianum (search summary only, Unverified). source link

Additional sources used only in this page's features:

  • G1 Hand to Hand fn 3: Japan Tourism Agency, Multilingual Commentary Database, "Chronology of Christianity in Japan Centered on Nagasaki" (R1-00781, FY2019; text by the Nagasaki and Amakusa World Heritage council). [source link) (checked 19 Oct 2026)
  • G2 Miyazaki Kentarō, "Roman Catholic Mission in Pre-Modern Japan," in Mullins (ed.), Handbook of Christianity in Japan (Brill, 2003), ch. 1, pp. 1 to 18. Same book as footnote 5.
Images

Image credits

  • Hero: Old Japanese plan as reproduced in E. Papinot’s dictionary of Japan; Commons dates it only “before 1850” and the original is not identified (Unverified). Public domain (PD-Japan). Wikimedia Commons (licence checked on the Commons file page, 19 Oct 2026)

Map data © OpenStreetMap contributors. Identifications follow each image's Wikimedia Commons description.