Léon Janet
type: Person
description: French politician and engineer (1861–1909)
birth date: 1861-12-06
death date: 1909-10-29
birth place: 4th arrondissement of Paris
death place: 6th arrondissement of Paris
nationality: France
alumni of: École polytechnique
alumni of: Mines ParisTech
alumni of: Lycée Charlemagne
has occupation: politician
has occupation: engineer
has occupation: mining engineer
award: Knight of the Legion of Honour
knows language: French
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  value: Jean-Émile Roger
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    tier: established
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value label: Knight of the Legion of Honour
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value label: Jean-Émile Roger

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value label: Edmond Roger

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value: Q150
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value label: French

value: Léon Augustin Janet
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source: Archives de Paris
stated in qid: Q2860432

source: Geneanet
stated in qid: Q3100478

source: Archives de Paris
stated in qid: Q2860432

source: BnF authorities
stated in qid: Q19938912
retrieved: 2015-10-10

source: La France savante
stated in qid: Q55740543
retrieved: 2025-12-24

source: Léonore database
stated in qid: Q2886420

source: Sycomore
stated in qid: Q15271528

source: Roglo
stated in qid: Q83365652

wikidata id: Q3271074
domain: human
level: standard
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data source: Wikidata (CC0 / public domain)
license: https://creativecommons.org/publicdomain/zero/1.0/
api version: v1
served at: 2026-08-01T11:18:31.516494Z
entity updated at: 2026-05-03T16:20:22.557058+00:00Z
entity created at: 2026-05-03T14:20:45.746292+00:00Z