十Christian Japan
Life

Dominic Iwanaga Mataichi: The Last Baptizer of Urakami

The last surviving lay baptizer of Urakami, who kept baptism alive for the whole hidden church after the arrests of 1856, sheltered a secret chapel behind his house in 1867, and died an exile at Tsuwano in 1870, leaving a son who became a priest.

4 min read958 words7 sourcesTap any name, place or term to learn moreTimeline

In 60 seconds

The opening line of each part of the story.

  1. One man holding the sacramen…In the hidden Christian villages of Urakami, the most precious thing the community possessed was not an object.
  2. The chapel behind his houseAfter 1865 the Christians of Urakami built four secret chapels, thatched farmhouses with an altar at the back, where the missionaries came by night to teach, baptise and say Mass.
  3. ExileThe cost came soon.

One man holding the sacrament for everyone

In the hidden Christian villages of , the most precious thing the community possessed was not an object. It was baptism. With no priests in Japan for more than two centuries, the faithful kept the sacrament alive through lay baptizers, the , who held a leading place among the and whose task was to baptise.As long as there was one , a child born in Urakami could still become a Christian.

By the spring of 1865 Urakami had only one. In 1856 the magistrate's officers had raided the villages in the crackdown remembered as the Third Urakami , which ran until 1860. When it was over, Iwanaga Mataichi was the only mizukata left alive.The Urakami parish history gives the cost: the Kichizō, head of the hidden church, had died in prison, and three of the four mizukata were lost. The underground church had all but collapsed, and it was Mataichi who held it up.

A play written for the 150th anniversary of the discovery adds that his eyes grew weak during his years in prison, and that he went on baptising the newborn babies of Urakami all the same.Tradition: a dramatist's telling, not a record. The parish of , which keeps his memory, calls him "a hero of the faith who stood in the leading place in the church of Urakami".He came from Hira, one of the Urakami hamlets, from a family of wealthy farmers known by the house name "Nawakomoya".

His name entered the written history of the Church within days of the . About ten days after the meeting at Oura on 17 March 1865, Fr reported to his superior, Fr Girard: "One of those who visited told me that among them baptism is still preserved." Through that report the Church in Europe learned of the mizukata Iwanaga Mataichi.The sacrament that one man had carried through the raids was now in touch with the priests again.

Petitjean's own words survive in French. Marnas prints his account of Easter Tuesday, 18 April 1865, when the two priests were led through the brush to a clump of pines where "Domingo, le baptiseur" waited with a few relatives. Domingo told them that only fear of compromising "our holy cause" had kept him from coming often to the church. He gave them his baptismal formula, "Kono hitowo paoti'zo in nomne Patero, Hilio, et S'ra Spiritou Sancto" (as printed), and promised to use from then on the form they wrote out for him. "Domingo nous assure être le seul survivant des baptiseurs de la vallée": Domingo assures us that he is the only surviving baptizer of the valley.Marnas gives only his Christian name; the Tsuwano register calls Mataichi "Dominic", which is the basis for identifying the two.

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

The chapel behind his house

After 1865 the Christians of Urakami built , thatched farmhouses with an altar at the back, where the missionaries came by night to teach, baptise and say Mass. One of them, the Santa Maria chapel, stood behind Mataichi's house at Hira.The magistrate's spies drew its plan.

Before dawn on 15 July 1867 the magistrate's men broke into the chapels. Father , who was hidden at the Santa Maria chapel, escaped into the hills.Mataichi's son Tomokichi, who had taken his father's place as a catechist, was seized and beaten half to death and thrown into a ditch by the road, until the Christians drove the officers off and carried him away.

At the Saint Joseph chapel at Tsuji the officers arrested . Leading him away, they stopped and demanded: "Where is the house of Mataichi of Hira?" In his own memorandum Sen'emon wrote that he would not tell them, so that Mataichi should not be taken, and would not let his son tell either, even when they drew a sword and said they would cut him down.The village protected its baptizer.

Exile

The cost came soon. When the Meiji government exiled the Christians of Urakami, Mataichi was in the first exile. There he was thrown into a freezing pond and tortured with water.His family followed him: his wife, two sons and three daughters, and his eldest son's daughters, were sent to Tsuwano and joined him; only the eldest son was sent elsewhere, to Hagi.

The register of the exiles, the 異宗門徒人員帳, as transcribed by the Tsuwano parish, gives the dates in a few lines. Dominic Iwanaga Mataichi, head of household, from Hira, died on the 16th day of the 10th month of Meiji 3 (9 November 1870), aged 47. Catharina Iwanaga Suki, his wife, died less than a month later, on the 10th day of the intercalary 10th month (2 December 1870), aged 45; the parish says she "followed her husband in martyrdom". Their daughter Catharina Mori, called Mori-chan, died on 4 September 1871, aged six.

That might have been the end. But the Catholic historian Urakawa Wasaburo, writing in 1928, looked at what happened to the families of the strongest witnesses. God, he wrote, often rewards the courage of believers in their descendants; and among the brave whose children or grandchildren were called to be priests, religious sisters or catechists, he names Iwanaga Mataichi beside Takagi Sen'emon, Kataoka Ichiemon and Moriyama Jinzaburo.The Tsuwano parish adds the plain fact: Mataichi's third son, Sanjiro (Shinpei), later became a priest.

So the line ran on. In 1856 the whole sacramental life of Urakami rested on one surviving layman. Fifteen years later that layman lay in an exile's grave at Tsuwano, and his son would one day stand at the altar as a priest of the Church his father had kept alive in secret.

What is uncertain

Where the sources disagree
  • Eyesight. Only in the 2015 play. Tradition.
Timeline

The dated story

Every dated row in this story, with its source.

  1. c. 1823born (from age 47 at death in 1870; approximate).
  2. 1856 to 1860Third Urakami Kuzure; only surviving mizukata.
  3. 17 Mar 1865discovery at Oura; about ten days later named in Petitjean's report.
  4. 18 Apr 1865meets Petitjean in a pine grove and gives his baptismal formula (as "Domingo").
  5. 15 Jul 1867raid on the Santa Maria chapel behind his house; son Tomokichi beaten.
  6. First exile (see The Urakami Exiles at Tsuwano, 1868 to 1873)sent to Tsuwano.
  7. 9 Nov 1870dies at Tsuwano.
  8. 2 Dec 1870wife Suki dies.
  9. 4 Sep 1871daughter Mori dies, aged 6.
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
Urakami Cathedralurakami: 32.7761633, 129.8683892. 32.77616, 129.86839Exact site OpenStreetMap way/280652259 (浦上天主堂)
Otome-tōge, Tsuwanotsuwano: Otome-toge, 34.473232, 131.7703202. 34.47323, 131.77032Exact site OpenStreetMap way/687734094 (乙女峠); Wikidata Q11369899 agrees
Read next

Where to go from here

Full record

Key facts

FactValueStatusSource
NameIwanaga Mataichi (岩永又市), baptismal name Dominic (ドミニコ).
From Hira (平), Urakami; family of wealthy farmers, house name "Nawakomoya" (なわこもや).
Mizukata (lay baptizer); the only mizukata to survive the Third Urakami Kuzure of 1856 (Ansei 3).
Named in Fr Petitjean's report to Fr Girard about ten days after 17 March 1865.
Met Petitjean on 18 Apr 1865 as "Domingo, le baptiseur" (identification by baptismal name).
Exiled to Tsuwano in the first exile; water torture in a frozen pond.
Died 9 Nov 1870 (Meiji 3.10.16), aged 47 (register).
Wife Suki (Catharina), died 2 Dec 1870 (Meiji 3, intercalary 10.10), aged 45.
Daughter Mori (Catharina), died 4 Sep 1871 (Meiji 4.7.20), aged 6.
Third son Sanjiro (Shinpei) later a priest.
Urakawa 1928 lists him among the witnesses whose descendants were called to priesthood or religious life.
Santa Maria chapel stood behind his house at Hira (1865 to 1867).
Son Tomokichi, catechist, beaten in the raid of 15 Jul 1867.
Sen'emon refused to reveal his house to the officers, 15 Jul 1867.
Glossary

Words in this story

chōkata 帳方
"Keeper of the book." The leader who kept the book of feasts (in Sotome, the calendar called the Ochō).
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.
kuzure 崩れ
A crackdown: the exposure and mass arrest of a hidden Christian community. Urakami suffered four; the last was the Yonban Kuzure of 1867.
mizukata 水方
The baptizer of a hidden community. Because baptism held everything together, this office was counted the highest.
Sources

Footnotes

  1. 1 Tsuwano Catholic Church (Diocese of Hiroshima), "乙女峠の証し人たち" (entries 岩永又市, 岩永すき, 岩永もり and the register list). source link
  2. 2 Urakawa Wasaburo, 切支丹の復活 後篇 (1928), NDL pid 1171097, p. 759 (frame 402; checked on the page image 20 Oct 2026). source link
  3. 3 Atlas Coordinates Log, rows 13 and 15.
  4. 4 Francisque Marnas, La Religion de Jésus (Iaso Ja-kyō) ressuscitée au Japon dans la seconde moitié du XIXe siècle, vol. 1 (Paris and Lyon, 1897), pp. 503 to 507, quoting Petitjean's account of 18 Apr 1865; read 20 Oct 2026).
  5. 5 Urakami Cathedral parish, "信徒発見後に建った4つの秘密教会" (with Laucaigne's letter and Takagi Sen'emon's memorandum). source link; checked 20 Oct 2026)
  6. 6 Fr Kaoru Furusu, "Santa Maria Was There!" (play script for the 150th anniversary of the discovery, Nagasaki, 2015; English translation).
  7. 7 Renata Cabral Bernabé, "Religiosity and Underground Life: Christianity among the Japanese during the Persecution", Bulletin of Portuguese/Japanese Studies, 2nd series, vol. 5 (2022), pp. 59 to 78.

Additional sources used only in this page's features:

  • G1 Hand to Hand fn 14: Miyazaki Kentarō, "The Kakure Kirishitan Tradition," in Mullins (ed.), Handbook of Christianity in Japan (Brill, 2003), ch. 2, pp. 19 to 34. ISBN 90-04-13156-6 / Hand to Hand fn 6: Oratio.jp (Nagasaki Prefecture), column "バスチャンの日繰りとは?" (text by Kawamura Noriko) [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.
  • G3 Hand to Hand fn 10: Japan Tourism Agency, Multilingual Commentary Database, "The Age of Hiding" chronology (R1-00782, FY2019). [source link) (checked 19 Oct 2026) / Hand to Hand fn 19: Urakami Cathedral parish history pages, "復活後の迫害1" (draws on Urakawa Wasaburō, 浦上切支丹史, and the memoirs of Kataoka Sada, Takagi Sen'emon and Moriyama Jinzaburō) [source link) (checked 19 Oct 2026)
  • G4 Hand to Hand fn 14: Miyazaki Kentarō, "The Kakure Kirishitan Tradition," in Mullins (ed.), Handbook of Christianity in Japan (Brill, 2003), ch. 2, pp. 19 to 34. ISBN 90-04-13156-6
Images

Image credits

  • No images on this page yet.

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