Related journey
Inubosaki and Mull of Galloway: A Lighthouse Partnership
Shared source: Japan Coast Guard — Twinned Lighthouses
See the connectionHeritage Journey
Kannonsaki and Millier: A Franco-Japanese Lighthouse Partnership
French engineering, house-form architecture and two distinct lighthouse histories
French engineering, house-form architecture and two distinct lighthouse histories
Story mode is the guided heritage-continuity mode inside the LUX Light Archive renderer.
Quercus acuta / Wikimedia Commons · CC BY-SA 4.0 · CC BY-SA 4.0 · Source
Paired histories
How the partnership came together
Quercus acuta / Wikimedia Commons · CC BY-SA 4.0 · CC BY-SA 4.0 · Source Verified fact
Japan's first Western-style lighthouse
Construction of Kannonsaki began on 1 November 1868 under Léonce Verny, and the lighthouse first operated on 1 January 1869.
Calcineur / Wikimedia Commons · CC BY-SA 3.0 · CC BY-SA 3.0 · Source Verified fact
A Breton maison-phare
Millier belongs to the French house-lighthouse tradition that JCG identifies as an architectural connection with the first Kannonsaki.
Verified fact
Kannonsaki continues through a third tower
The current Kannonsaki Lighthouse is the third generation, built in 1925. The partnership does not flatten the first and present structures into one unchanged tower.
Verified fact
The Franco-Japanese partnership is signed
JCG records the Memorandum of Cooperation as signed on 15 November 2025.
Interpretive bridge
A shared interpretation, with limits
The partnership can support exhibitions, visits and tourism, while LUX keeps planned exchange separate from actions documented as completed.
Continue exploring
Each connection follows reviewed archive relations and evidence.
Heritage Journey
Kannonsaki and Millier: A Franco-Japanese Lighthouse Partnership
French engineering, house-form architecture and two distinct lighthouse histories
Kannonsaki and Millier were twinned in 2025 through a source-backed connection involving French engineering, the first Kannonsaki's house-form design, and Millier's Breton setting near the Florant brothers' home region.
LUX Light Archive is the heritage renderer of the LUX143 research field, preserving lighthouse continuity through evidence, memory, movement, and sources.
Understand how this archive fits into the wider research field.
Inside this heritage renderer, Story and Research are two modes of the same evidence-grounded journey: Story gives a guided path, while Research shows the sources, relationships, uncertainty, and open questions behind it.
Paired histories
- 1868–1869
Verified fact
Japan's first Western-style lighthouseConstruction of Kannonsaki began on 1 November 1868 under Léonce Verny, and the lighthouse first operated on 1 January 1869.
- 1881
Verified fact
A Breton maison-phareMillier belongs to the French house-lighthouse tradition that JCG identifies as an architectural connection with the first Kannonsaki.
- 1925
Verified fact
Kannonsaki continues through a third towerThe current Kannonsaki Lighthouse is the third generation, built in 1925. The partnership does not flatten the first and present structures into one unchanged tower.
- 2025
Verified fact
The Franco-Japanese partnership is signedJCG records the Memorandum of Cooperation as signed on 15 November 2025.
- Future
Interpretive bridge
A shared interpretation, with limitsThe partnership can support exhibitions, visits and tourism, while LUX keeps planned exchange separate from actions documented as completed.
In brief
French engineering, house-form architecture and two distinct lighthouse histories
Related through...
Inspect the governed relationship and evidence path behind each selected journey.
Related journey
Inubosaki and Mull of Galloway: A Lighthouse Partnership
Shared source: Japan Coast Guard — Twinned Lighthouses
- Reason code
- shared_source
- Evidence
- Accepted evidence grounded
- Path
- jcg:twinned-lighthouses
Connected research view
Graph, time and place
Select an event, object, or place to trace it across all three views.
Interactive Movement Timeline
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Relationship Graph
Research mode keeps the two lighthouse identities separate and exposes the symmetric partnership plus the official documentation edges.
PlaceAssetStructureTransformation
No path selected.
Journey Map
No reviewed coordinates are available for this Journey yet.
Evidence
Official and focus-specific sources carry the strongest confidence; secondary sources are shown as corroborating context.
No evidence-backed relationships yet.
Source Baseline
- Japan Coast Guard — Twinned Lighthousesofficial_navigation_authorityAppears in Story: A Breton maison-phare · Appears in Story: The Franco-Japanese partnership is signed · Appears in Story: A shared interpretation, with limits
- MLIT Infrastructure Tourism — Kannonsaki Lighthouseofficial_government_sourceAppears in Story: Japan's first Western-style lighthouse · Appears in Story: Kannonsaki continues through a third tower
- IALA Heritage — The birth of a Franco-Japanese lighthouses twinning partnershipinternational_navigation_heritage_bodyAppears in Story: The Franco-Japanese partnership is signed · Appears in Story: A shared interpretation, with limits
Identity Changes
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Current Status
No rows yet.
Open Questions
Research still in progress — these do not affect accepted relationships above.
- Which post-signing exchanges have been completed, and which remain prospective under the 2025 memorandum?
Why LUX models a partnership
A twinning agreement belongs in the archive as a relationship between lighthouse identities, not as a new merged object.
The model keeps completed agreements separate from exhibitions, visits and tourism outcomes that remain prospective until directly documented.
Rights & Attribution
Content License
Original editorial content on this page: Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International. See Rights & Reuse.
Media Rights
- White Kannonsaki Lighthouse seen against trees and sky. · Rights status: CC BY-SA · License: CC BY-SA 4.0 · Third-party material
- Maison-feu du Millier, a house-form lighthouse on the Breton coast. · Rights status: CC BY-SA · License: CC BY-SA 3.0 · Third-party material
Attribution
"Kannonsaki and Millier: A Franco-Japanese Lighthouse Partnership" · kannonsaki-millier-twinned-lighthouses · © LUX143 · Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International · https://light.lux143.org/heritage-journeys/kannonsaki-millier-twinned-lighthouses/ Quercus acuta / Wikimedia Commons · CC BY-SA 4.0 · Rights status: CC BY-SA · CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0/) · Source: Wikimedia Commons — https://commons.wikimedia.org/wiki/File:Kannonzaki_Lighthouse.jpg · © Quercus acuta Calcineur / Wikimedia Commons · CC BY-SA 3.0 · Rights status: CC BY-SA · CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0/) · Source: Wikimedia Commons — https://commons.wikimedia.org/wiki/File:Maison_phare_de_la_pointe_du_Millier_1.jpg · © Calcineur
Citation
LUX Light Archive, Heritage journey: "Kannonsaki and Millier: A Franco-Japanese Lighthouse Partnership", kannonsaki-millier-twinned-lighthouses, https://light.lux143.org/heritage-journeys/kannonsaki-millier-twinned-lighthouses/, accessed 2026-08-27, archive v0.24.492.