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Mechthild of Schwarzburg-Käfernburg (died 1192), was a countess consort of Holstein by marriage to Adolf II of Holstein. She was the regent of Pomerania during the minority of her son Adolf III of Holstein between 1164 and 1174.
She was born to Count Sizzo III of Schwarzburg-Käfernburg.
References
Heinz Maybaum (1953), "Adolf III., Graf von Holstein", Neue Deutsche Biographie (in German), vol. 1, Berlin: Duncker & Humblot