"Otto IV of Schaumburg" . . . . "1576" . . . . . . "Otto IV" . . . "Otto IV of Schaumburg" . . . "1517" . . . "Otto IV of Schauenburg and Holstein-Pinneberg" . "Count Otto IV of Schauenburg-Pinneberg" . "Elisabeth of Schaumburg" . . . "Otto IV, Count of Holstein-Schaumburg" . . . "Otto IV of Holstein-Schauenburg-Pinneberg" . . . . . "1576-12-21" .