Grandiosa is a State Premium Oldenburg mare that has already produced a licensed Oldenburg stallion by Fürst Heinrich and the State Premium Oldenburg mare Grandina.

Rubinstein is one of the worlds all time great dressage sires and is highly sought after all over the world. Rubinstein had 40 wins at Grand Prix level, was a member of the 1996 Olympic team, sired 89 state premium mares and 66 approved stallions and was the father of top auction horses and Grand Prix winners, sadly he died 2000, aged 14, however he made an incredible impact on dressage breeding. Rubinsteins dam is "Antine", full sister to two Olympic dressage stars "Amon" & Dr Reiner Klimkes famous horse "Ahlerich". Rubinstein is by the stallion Rosenkavalier who is by Romadour II, who is the sire of World and Olympic champion, Rembrant. Rubinstein is the sire of Relevant, Rusty, Rhodiamant, Royal Diamond amongst many others. Rubinstein was quite simply one of the best dressage sires to have ever lived.

Her dam's sire Grenadier was schooled to F.E.I. level dressage and stood at Celle, where he sired 27 approved stallions. He was said to have had an all round disposition and was brilliantly true to type. He was the Reserve Champion of his stallion testing and Reserve Champion Stallion at the 1980 DLG show. Grenadier is considered one of the most influential stallions from the Grenade line. In 1990, he was third in his age group in FN statistics in dressage. His son Golfstrom I was an international Grand Prix dressage horse, winning the German Team Gold Medal with Ann Kathrin Kroth at the 1990 World Championships in Sweden. The Golfstron I daughter Goldlady was the 1989 DLG Champion Mare. The Grenadier daughter Germanica was Champion Mare at the 1988 Ratje-Niebuhr Mare Show. The Grenadier son Grand Royal sired Grisabella, who set a record when she sold for 225,000 DM at the 1992 Verden auction. Grenadier is listed by the breeding value index as number 22 n dressage out of 1500 horses and number 34 overall.

In 2007 Grandiosa had a filly foal by His Highness which has been retained by Newton Stud.

In 2008 Grandiosa had a colt foal by De Niro.

In 2009 Grandiosa had a filly foal by De Niro, which will be retained by Newton Stud (see Youngstock for details).