Since 1 January 2010, it is part of the municipality Petersberg.
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Krosigk is a village and a former municipality in the district Saalekreis, in Saxony-Anhalt, Germany.
He was born Johann Ludwig von Krosigk in Rathmannsdorf, Anhalt, Germany to a father from an old noble family of Anhalt and a mother who was a daughter and heiress of a Count (Graf) von Schwerin, a member of the same family as Richardis of Schwerin, Queen of Sweden.