The development of the modern Brandenburger sport horse during the mid-20th century was achieved by utilizing Trakehners, Hanoveranians and English Thoroughbreds. The national and state stud of Neustadt/Dosse, which was founded by King Frederick Wilhelm II in 1788, had substantial influence on the development of the Brandenburger.
Following reunification with the former German Democratic Republic (East Germany), stallions from Hanoverian bloodlines and lines which came via Redefin gained a big influence on the Brandenburg breed. These included inter alia the:
The stallion Komet who came from Mecklenburg, and who miraculously escaped the enforced castration that was the rule for unapproved stallions in East Germany at that time, later became a great sire and produced a series of successful showjumping sires such as Kolibri by Kobold and Kogani I by Kobold I.
A comprehensive blood rejuvenation has taken place since 1990, through the newly-founded breeders' association. Since then, mainly Holsteiners from the Ladykiller xx line and the Cor-de-la-Bryère-SF lines, but also stallions from Oldenburg have gained predominance.
In 1999, the breeding stock encompassed 1,927 registered broodmares and 76 sires. The Neustadt/Dosse state stud is the breeding centre. This is where the stallion approval takes place in October every year.