When Fritz Bieri was christened on 18 February 1901, in Schangnau, Bern, Switzerland, his father, Johann Friedrich Bieri, was 35 and his mother, Katharina Hadorn, was 23. He died on 1 February 1922, at the age of 20.
Some characteristic forenames: German Otto, Bernhard, Heinz, Kurt, Reinhold.
Swiss German: probably from a pet form of the personal name Birr 1. In Switzerland it is most common in the cantons of Bern and Lucerne.
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