The first known states to hold power …

Years: 985 - 985

The first known states to hold power in Silesia had been those of Greater Moravia at end of the ninth century and Bohemia early in the tenth century.

The alliance between Poland and Bohemia had been overturned between 977 and 985.

Poland has participated in invasions led by the German Empire against Bohemia, and in 985 or 990 acquires Silesia at Bohemia’s expense.

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