Ottwalt was born Ernst Gottwalt Nicolas in Zippnow, today Sypniewo, in the district of Deutsch Krone in the former West Prussia.
Sypniewo, Złotów County in Greater Poland Voivodeship (west-central Poland)
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Sypniewo, Chodzież County in Greater Poland Voivodeship (west-central Poland)
Sypniewo, Złotów County | Sypniewo, Chodzież County | Sypniewo |