Imported to the U.S. in 1988. Shown lightly in hunters and dressage. Stallion Champion and Mature Horse champion at Dressage at Devon. Numberous other breed show championships. Onassis has 3 approved sons, Laurtiz, Tycoon and Tatendrang. Several of his get have won USEF HOY awards in children's hunters, green conformation hunters and in hand in DSHB and hunter breeding. His daughters have produced approved stallions and competition horses that have gone to the highest levels. Onassis left 3 daughters in Germany all of which went on to produce valuable offspring. The most noteworthy, Gelda's Seacookie TSF ridden by Ingrid Klimke who was Bundeschampionat in eventing and later sold to England. He represented England at the 2009 Rolex event in Kentucky and was a top placed finisher.