The electors were originally summoned by the Archbishop of Mainz within one month of an Emperor's death, and met within three months of being summoned. During the "interregnum", imperial power was exercised by two imperial vicars. Each vicar, in the words of the Golden Bull, was "the administrator of the empire itself, with the power of passing judgments, of presenting to ecclesiastical benefices, of collecting returns and revenues and investing with fiefs, of receiving oaths of fealty for and in the name of the holy empire". The Elector of Saxony was vicar in areas operating under Saxon law (Saxony, Westphalia, Hannover, and northern Germany), while the Elector Palatine was vicar in the remainder of the Empire (Franconia, Swabia, the Rhine, and southern Germany). The Elector of Bavaria replaced the Elector Palatine in 1623, but when the latter was granted a new electorate in 1648, there was a dispute between the two as to which was vicar. In 1659, both purported to act as vicar, but ultimately, the other vicar recognized the Elector of Bavaria. Later, the two electors made a pact to act as joint vicars, but the Imperial Diet rejected the agreement. In 1711, while the Elector of Bavaria was under the ban of the Empire, the Elector Palatine again acted as vicar, but his cousin was restored to his position upon his restoration three years later.