Alfons Klein
type: Person
description: Administrator of Hadamar Euthanasia Centre (1909-1946)
birth date: 1909-06-08
death date: 1946-03-14
birth place: Frickhofen
death place: Bruchsal
works for: Hadamar Euthanasia Centre
additional property: PropertyValue
  property ID: P19
  value: Frickhofen
additional property: PropertyValue
  property ID: P20
  value: Bruchsal
additional property: PropertyValue
  property ID: P21
  value: male
additional property: PropertyValue
  property ID: P31
  value: human
additional property: PropertyValue
  property ID: P102
  value: Nazi Party
additional property: PropertyValue
  property ID: P108
  value: Hadamar Euthanasia Centre
additional property: PropertyValue
  property ID: P214
  value: 72616352
additional property: PropertyValue
  property ID: P227
  value: 135670934
additional property: PropertyValue
  property ID: P463
  value: Sturmabteilung
additional property: PropertyValue
  property ID: P569
  value: June 8, 1909
additional property: PropertyValue
  property ID: P570
  value: March 14, 1946
additional property: PropertyValue
  property ID: P734
  value: Klein
additional property: PropertyValue
  property ID: P735
  value: Alfons
additional property: PropertyValue
  property ID: P1038
  value: Philipp Blum
additional property: PropertyValue
  property ID: P1344
  value: Nuremberg Medical Trial
additional property: PropertyValue
  property ID: P1344
  value: Hadamar Trial
additional property: PropertyValue
  property ID: P1412
  value: German
additional property: PropertyValue
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  value: 318283
additional property: PropertyValue
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additional property: PropertyValue
  property ID: P3342
  value: Fritz Bernotat
additional property: PropertyValue
  property ID: P3716
  value: white-collar worker
additional property: PropertyValue
  property ID: P5008
  value: Wikiproject Nuremberg Trials
additional property: PropertyValue
  property ID: P7902
  value: 135670934
additional property: PropertyValue
  property ID: P8168
  value: Wasserturm am Steeler Berg
additional property: PropertyValue
  property ID: P10832
  value: E39PBJqFJXy4dphtCtTGd3gYfq
confidence:
  popularity graph score:
    score: 0.001
    score pct: 0
    tier: established
    components:
      sitelinks: 0
      sitelinks norm: 0.0
      unique citations: 5
      unique citations norm: 0.002
      monthly pageviews: 0
      monthly pageviews norm: 0.0
  sitelinks: 0
  unique citations: 5
  monthly pageviews: 0
  yearly pageviews: 17
  pageview trend:
    m: 2026-05
    v: 8
  pageview trend:
    m: 2026-04
    v: 9
  tier: established
claims:
  P19:
    value: Q1456103
    source count: 1
    confidence: 0.2
    value label: Frickhofen
  P20:
    value: Q7059
    source count: 1
    confidence: 0.2
    value label: Bruchsal
  P21:
    value: Q6581097
    source count: 0
    confidence: 0.0
    value label: male
  P31:
    value: Q5
    source count: 0
    confidence: 0.0
    value label: human
  P102:
    value: Q7320
    source count: 2
    confidence: 0.4
    value label: Nazi Party
    qualifiers:
      P580: +1930-10-01T00:00:00Z
  P108:
    value: Q470564
    source count: 1
    confidence: 0.2
    value label: Hadamar Euthanasia Centre
    qualifiers:
      P580: +1939-00-00T00:00:00Z
      P582: +1945-00-00T00:00:00Z
  P214:
    value: 72616352
    source count: 0
    confidence: 0.0
  P227:
    value: 135670934
    source count: 1
    confidence: 0.2
  P463:
    value: Q150793
    source count: 1
    confidence: 0.2
    value label: Sturmabteilung
    qualifiers:
      P580: +1930-00-00T00:00:00Z
  P569:
    value: +1909-06-08T00:00:00Z
    source count: 1
    confidence: 0.2
  P570:
    value: +1946-03-14T00:00:00Z
    source count: 1
    confidence: 0.2
  P734:
    value: Q428024
    source count: 1
    confidence: 0.2
    value label: Klein
  P735:
    value: Q18180801
    source count: 1
    confidence: 0.2
    value label: Alfons
  P1038:
    value: Q63384900
    source count: 1
    confidence: 0.2
    value label: Philipp Blum
  P1344:
    value: Q160721
    source count: 1
    confidence: 0.2
    value label: Nuremberg Medical Trial
  P1344:
    value: Q86531660
    source count: 1
    confidence: 0.2
    value label: Hadamar Trial
  P1412:
    value: Q188
    source count: 0
    confidence: 0.0
    value label: German
  P2298:
    value: 318283
    source count: 1
    confidence: 0.2
  P2671:
    value: /g/11h4q6qmdd
    source count: 0
    confidence: 0.0

value: Q1465704
source count: 1
confidence: 0.2
value label: Fritz Bernotat

value: Q255274
source count: 2
confidence: 0.4
value label: white-collar worker

value: Q100137722
source count: 0
confidence: 0.0
value label: Wikiproject Nuremberg Trials

value: 135670934
source count: 0
confidence: 0.0

value: Q977881
source count: 0
confidence: 0.0
value label: Wasserturm am Steeler Berg

value: E39PBJqFJXy4dphtCtTGd3gYfq
source count: 1
confidence: 0.2

source: Catalog of the German National Library
stated in qid: Q23833686
retrieved: 2021-07-17

source: Integrated Authority File
stated in qid: Q36578
retrieved: 2026-02-23

wikidata id: Q63384933
domain: human
level: standard
html url: https://4ort.xyz/entity/alfons-klein
markdown url: https://4ort.xyz/entity/alfons-klein.md
facts url summary: https://4ort.xyz/entity/alfons-klein/facts.json
facts url standard: https://4ort.xyz/entity/alfons-klein/facts.json
facts url full: https://4ort.xyz/entity/alfons-klein/facts.json
data source: Wikidata (CC0 / public domain)
license: https://creativecommons.org/publicdomain/zero/1.0/
api version: v1
served at: 2026-08-23T11:22:47.423541Z
entity updated at: 2026-05-03T16:20:22.557058+00:00Z
entity created at: 2026-05-03T14:02:54.446973+00:00Z