king sigismund (1368–1437) was margrave of brandenburg until 1415. this included altmark, mittelmark, prignitz, the land of sternberg to the east of the oder and a part of the uckermark. the office of the archchamberlain of the holy roman empire, and thus the prince elector, was awarded to the margrave of brandenburg by the golden bull in 1356. a delegation of the mark came to king sigismund in ofen in 1411 in order to demand a governor for the mark in support of the robber knights. the king ordered frederick iv, burgrave of nuremberg from the house of hohenzollern to be the supreme master and administrator in the mark. he led the title "wir friedrich von gotes gnaden margraf zu brandenburg, des heiligen romischen reiches ertzkamerer und burggraf zu nuremberg" (we, frederick by grace of god, margrave of brandenburg, imperial holy roman archchamberlain and burgrave of nuremberg). on 18 april 1417, king sigismund solemnly granted the burgraviate by handing over the banner with the margraviate of brandenburg,