luddorph's daughter, hedevig ulrikke, in 1713 brought rosengaard into her marriage with adam christoffer knuth. after the death of his first wife, knuth married a second time to ide margrethe reventlow. reventlow kept the estate after her husband's death in 1736. in 1743, she converted rosengaard, sørupgaard and sandbygaard into the barony of conradsborg for her son conrad ditlev knuth.