Born in the Austrian village of Spital, Weitra, Waldviertel, her father was Johann Baptist Pölzl and her mother was Johanna Hiedler. Either Johanna Hiedler's father Johann Nepomuk Hiedler or his brother Johann Georg Hiedler (who is presumed and accepted as the father) was the biological father of Klara Hiedler's husband, Alois Hitler, Sr.. Therefore, Klara and Alois were most likely first cousins once removed.*

Source: http://en.wikipedia.org/wiki/Klara_Hitler

I am a little bit puzzled by the statement that Klara and Alois Hitler were "first cousins once removed". From the text it stemms that Alois and Klara were uncle and niece (The godfather of Klara Hitler was at the same time the father of Alois). But the term "cousins once removed" indicates a different sort of the relationship between AH's parents. Or does it not?

  • 1
    "Once removed" implies one generation removed. See en.wikipedia.org/wiki/Cousin. Apr 7, 2015 at 15:17
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    I'd like to think that one day, there will be a novel whose plot hinges on the difference between 'once removed' used as a difference in generation, and used as murdering all heirs to the throne. Like a prophecy saying, "The cousin, once removed, will never rule over the kingdom"
    – Sanchises
    Apr 7, 2015 at 15:42

1 Answer 1


It appears that Klara's mother's uncle was the father of her husband. Thus, her husband was a cousin of her mother's. This is exactly what is meant by "first cousin once removed".

  • First cousins: same grandfather.

  • Second cousins: same great-grandfather.

  • First cousins once removed: the grandfather of one is the great-grandather of the other.

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