only yielded to Charles IV., the papal nominee, when Guenther of Schwarzburg thought it more prudent to abdicate in his favour. Charles granted the city a full amnesty, and confirmed its liberties and privileges. By the famous Golden Bull of 1356 Frankfort was declared the seat of the imperial elections, and it still preserves an official contemporaneous copy of the original document as the most precious of the eight imperial bulls in its possession. From the date of the bull to the close of the Empire Frankfort retained the position of "Wahlstadt," and only five of the two-and-twenty monarchs who ruled during that period were elected elsewhere. In 1388-1389 Frankfort assisted the South German towns in their wars with the princes and nobles (the Staedtekrieg), and in a consequent battle with the troops of the Palatinate, the town banner was lost and carried to Kronberg, where it was long preserved as a trophy. On peace being concluded in 1391, the town had to pay 12,562 florins, and this brought it into great financial difficulties. In the course of the next 50 years debt was contracted to the amount of 126,772 florins. The diet at Worms in 1495 chose Frankfort as the seat of the newly instituted imperial chamber, or "_Reichskammergericht_," and it was not till 1527 that the chamber was removed to Spires. At the Reformation Frankfort heartily joined the Protestant party, and in consequence it was hardly treated both by the emperor Charles V. and by the archbishop of Mainz. It refused to subscribe the Augsburg Recess, but at the same time it was not till 1536 that it was persuaded to join the League of Schmalkalden. On the failure of this confederation it opened its gates to the imperial general Bueren on the 29th of December 1546, although he had passed by the city, which he considered too strong for the forces under his command. The emperor was merciful enough to leave it in possession of its privileges, but he inflicted a fine of 80,000 gold gulden, and until October 1547 the citizens had to endure the presence of from 8000 to 10,000 soldiers. This resulted in a pestilence which not only lessened the population, but threatened to give the death-blow to the great annual fairs; and at the close of the war it was found that it had cost the city no less than 228,931 gulden. In 1552 Frankfort was invested for three weeks by Maurice of Saxony, who was still in arms against the emperor Charles V., but it continued to hold out till peace was concluded between the principal combatants. Between 1612 and 1616 occurred the great Fettmilch insurrection, perhaps the most remarkable episode in the internal history of Frankfort. The magistracy had been acquiring more and more the character of an oligarchy; all power was practically in the hands of a few closely-related families; and the gravest peculation and malversation took place without hindrance. The ordinary citizens were roused to assert their rights, and they found a