Boguszyn, Leszno County in Greater Poland Voivodeship (west-central Poland)
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Boguszyn, Środa Wielkopolska County in Greater Poland Voivodeship (west-central Poland)
Friedrichswartha was founded in 1777, after the conquest of the County of Kladsko by the Prussian king Frederick the Great in the course of the First Silesian War 1740–42.
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A former gord on the ancient Amber Road near the border of Bohemia with the Kingdom of Poland was already mentioned in 1086, later named Burgstädtel.