How and why did Duke William form his forces ?
The other Ernestine duchies were never members of the Imperial Circle , and did not have the right to vote in the reichstag as the five duchies that the other duchies did ( for example , the principalities of Meiningen and Hildburghausen were such ; that was one reason why Duke of Saxe - Hildburghausen exchanged his patrimony to that of Altenburg ) .