Duke of Brandenburg

The Duke of Brandenburg (known as Duchess of Brandenburg if held by a woman) is a Shirerithian noble title that Kaiser Ayreon IV, in 1670 through Imperial Decree 1193, created for Arkadius IV of Batavia. Suppressed in 1678.

The main text of the decree stated: We bestow upon His Majesty Arkadius Frederik Gustavus des Vinandy, the King of the Batavians, the title, degree and dignity of Duke of Brandenburg, of Brandenburg Manor in the Domain of Oleslääd. Upon his death or removal from the title, it shall pass to his legitimate issue, with preference to the elder and their descendants over the younger and their descendants, until the line is extinguished.

At the outbreak of the Second Amokolian War in 1678, in which the Duke of Brandenburg waged war against the Kaiseress, the title was suppressed under Shirerithian law. As such, Arkadius IV is not, under Shirerithian law, allowed to use the title. He continues to do so nevertheless under Frankish law. If the Kaiseress decides to rehabilitate Arkadius, he will be allowed to use the title in Shirerithian law.