On August 1st, 1714 George I became the first Hanoverian King on England. Along with the Electorate of Hanover, a subsection of the Holy Roman Empire, George brought three distinct strains of Hanoverian horses under the control of the British crown. George I’s mother, Sophia, commissioned the palace at Herrenhausen in Hannover, which produced these three strains, divided in both color and history.
These three strains, known by their respective colors (Isabellen, Wiessgebornen, and schwartz- yes, the first two are usually capitalized, the last is not, which may reflect their comparative status) are not the direct ancestors of today’s Hanoverian horses, but may have some influence. Alongside these three relatively closed programs, Herrenhaus also stood a select number of stallions to the public, usually “English” (i.e. Thoroughbred) crosses, and the philosophy of this program developed into the idea of the warmblood.