I was sent this question via PM and thought it might be best to respond as a new thread because if this person has this question certainly others do as well:
Why is it a hanoverian/tb cross is considered an oldenburg ? The crossing of breeds is something that has always confused me and I don’t understand how that combination produces an oldenburg one time, and a hanoverian the next time. Or say a hanoverian and a dutch warmblood. I understand it is what they sire and dam are approved to but the inconsistency as to what breed the foal actual is I find very confusing. Is it because it is a registry and not a breed as others have stated a warmblood is not a breed ?
The warmblood horse was developed in different regions of Europe originally for the purpose of farm work, military and pleasure. Over time as their need for farm work and military “equipment” reduced their use for pleasure/ sport increased. Due to this change of need breeding objectives changed from a heavier horse to a lighter athletic type.
In Germany the different regions developed their own individual registries for their horses. For example, there are the Oldenburgs, the Hanoverians, the Westfalens, the Holsteiners, etc. Each registry was responsible for managing their own parameters set up to determine mare inspections, stallion inspections, approvals, breed books, etc. Historically there were differences of the “type” of horse between these registries as each one had their own purpose. For example, the Oldenburgs tended towards a heavier horse, the Holsteiners towards more jumping ability. However, over time the registries have all somewhat “melded” in wanting to produce a similar type of sport horse. Each registry has a little bit different philosophy on how to achieve this…the Oldenburgs are a very open registry while the Hanoverians are more selective (although this is changing as well). Certain registries such as the Holsteiners were traditionally a very closed registry. Lastly, the Trakehner has an amazing history that is too long to write here and absolutely worth reading about. They are considered to be a true independent breed.
In general a mare is approved into a certain registry. The stallion is approved in that same registry. A foal is born, branded and papered into that same registry. Where confusion starts is wehn a certain horse is registered into a certain registry (i.e.; have papers with that registry) but is later approved into other registries.
Some stallions that were very well regarded and prepotent for particular qualities were approved into many different registries. For example, Donnerhall, one the most important stallions to producing todays dressage horse, was a branded/ papered Oldenburg. However, many other registries understood his qualities and importance and “accepted” him into their registries as well. Hence, Donnherall is an Oldenburg stallion approved for use in Hanoverian breeding, Westfalen breeding, Dutch breeding, etc. It is through the “sharing” of these stallions that many of these different registries have all sort of become to look like each other.
Another stallion to mention since you bring up the Tb is the recently deceased Laurie’s Crusader (LC). He was probably the most used Tb in modern Hanoverian breeding directly through him and through his sons (notably Londonderry). LC and his sons were also used in many other German registries, including the Trakehner.
Similar things happen with mares. For example, I have a Hanoverian broodmare. I have considered having her “approved” into the Oldenburg registry so I can breed her to a stallion that is approved Oldenburg but not approved Hanoverian. Therefore, the resulting offspring would be branded and approved Oldenburg. Ironically, the stallion I am interested in is a branded Dutch stallion approved for Oldenburg breeding. So in this scenario if my mare was approved Oldenburg it would look like this…a Hanoverian mare bred to a Dutch stallion with the resulting foal branded Oldenburg:)
Does that clear things up or make the mud even thicker!!! Anyone that reads anything incorrect please correct me! Or add to clarify anything that does not make sense…