Rosenthal is by the famous sire Rubinstein (pictured here) and is a full brother to Rubin Magic, a licensed Hanoverian and Oldenburg stallion  that stands in Germany. Rosenthal was originally purchased from Gudela  Vorwerk (Owner of Rubinstein). She had bought him as a stallion prospect for  herself from his breeder Wilhelm Kreibaum. She also had Rosenthal's full brother  Rubin Magic, a fully licensed Hanoverian and Oldenburg standing in Germany who  enjoys a successful dressage career.