Biadki [ˈbjatki] (German: Battken) is a village in the administrative district of Gmina Krotoszyn, within Krotoszyn County, Greater Poland Voivodeship, in west-central Poland. It lies approximately 9 kilometres (6 mi) east of Krotoszyn and 92 km (57 mi) south-east of the regional capital Poznań.
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The village has a population of 1,700.
During the occupation of Poland during World War II, in November 1939, the Germans murdered six Polish residents of Biadki in the forest near Kobylin, and in 1944, they also brought dozens of prisoners of war of different nationalities to the village. The Germans evacuated most of the prisoners of war in January 1945, leaving 18 Hungarians, who were then murdered by the Soviets who occupied the village on January 23.
- "Central Statistical Office (GUS) - TERYT (National Register of Territorial Land Apportionment Journal)" (in Polish). 2008-06-01.
- Maria Wardzyńska, Był rok 1939. Operacja niemieckiej policji bezpieczeństwa w Polsce. Intelligenzaktion, IPN, Warszawa, 2009, p. 275 (in Polish)
- Anna Gałkiewicz, Informacja o śledztwach prowadzonych w OKŚZpNP w Łodzi w sprawach o zbrodnie popełnione przez funkcjonariuszy sowieckiego aparatu terroru, "Biuletyn Instytutu Pamięci Narodowej" nr 7/2001, p. 20 (in Polish)