 The dam-sire of Baroness was the stallion Athos, who was known as a broodmare sire of dressage horses, and her damline (Athos-Fliegerstern) also produced the stallions Grenadier, Hitchcock, and Winner.This breeding combination of a Thoroughbred stallion to a mare that was by a Thoroughbred was prohibited by the Hanoverian studbook at the time, due to the belief that the offspring would be unsuccessful.Pedigree for Bolero
1975 Chestnut colt

Bolero did only moderately well at his 100-day stallion test held at Adelheidsdorf, placing 6th out of 30 stallions with a final score of 111.