Sire : Foundation

Fidertanz was the 2004 NRW Champion Stallion. He dominated his 30-day test in Neustadt in 2005 and then took the Vice Champion title at the Bundeschampionat in Warendorf with a score of 9.5 .In 2006 he was awarded the main premium for stallions with emphasis on dressage in Oldenburg in recognition of his outstanding first foal crop. In 2007, Fidertanz received a score of 8.8 in a qualifier for the Bundeschampionat and thus fulfilled the performance requirements for licensing.
His offspring are highly coveted and bring top prices – proved by high priced foals in Verden, Vechta, Münster-Handorf and in Switzerland. The number of licensed his sons has increased to 16. Among these was a price highlight at the Stallion Market in Verden named Feuerspiel who came with a price tag of 220,000 Euros and a son named Fürstentanz who took sixth place at the 2010 Bundeschampionat. 70 of his offspring from his first two foal crops, are now winning ribbons in tests for young riding horses and dressage horses which, according to the FN's predicted breeding value statistics, put their sire to a top place among the best sires in Germany for rideability.

Fidertanz is by Fidermark I, the winner of his stallion performance test, Bundeschampion, and Grand Prix winner . His dam, granddam and great granddam from the performance line of Astfläche all received a State Premium.

De Niro
The following is an extract from the owners of De Niro :
In 2012, De Niro is ranked first in the ranking of the World Breeding Federation for Sports Horses. Therefore he is the best dressage stallion of the world.
In 2013, De Niro confirmed his status as best dressage stallion of the world. The German dressage team with Desperados and D‘Agostino won the Gold Medal at the European Championships in Herning. The stallion by De Niro – Rosario, bred by Josef Greten, became champion stallion of the licensing in Oldenburg and was sold for sensational 910,000 Euros to the Danish Olympic rider Andreas Helgstrand.
In 2014, the German Dressage Team including Desperados and rider Kristina Sprehe and D‘Agostino with rider Fabienne Lütkemeier won the Team Gold Medal at the World Equestrian Championships in Normandy. The overall amount of prize value of De Niro‘s descendants reached more than 2,000,000 Euros. 

Donnerhall is arguably the most influencial sire in modern dressage. His breeding tally includes 77 approved sons, while of the more than 450 registered mares, 84 were awarded the state premium, including the champion mares Primavera and Hallo. In excess of 300 progeny have moreover been registered as sports horses.