I'm trying to find records for Hecklingen. I have found the oldest daughter Katherine Christine Alsleben born in Hecklingen on 18 Jan 1793. Her parents Johann Christian Carl Alsleben and Marie Dorothee Bischoff were likely married there. As not found in Bernburg records, where the rest of the children were born in and died. I did find a Johann Christian Alsleben born about 1730 and died 1808 married in Bernburg and his father Johann Heinrich Alsleben lived in Hecklingen, so am pretty certain its the same family.