ish side the principal free
cities, particularly Nuremberg and Frankfort. The first that lay in the
king's march, and which he could not leave unoccupied in his rear, was
Erfurt. Here the Protestant party among the citizens opened to him,
without a blow, the gates of the town and the citadel. From the
inhabitants of this, as of every important place which afterwards
submitted, he exacted an oath of allegiance, while he secured its
possession by a sufficient garrison. To his ally, Duke William of
Weimar, he intrusted the command of an army to be raised in Thuringia.
He also left his queen in Erfurt, and promised to increase its
privileges. The Swedish army now crossed the Thuringian forest in two
columns, by Gotha and Arnstadt, and having delivered, in its march, the
county of Henneberg from the Imperialists, formed a junction on the
third day near Koenigshofen, on the frontiers of Franconia.

Francis, Bishop of Wurtzburg, the bitter enemy of the Protestants, and
the most zealous member of the League, was the first to feel the
indignation of Gustavus Adolphus. A few threats gained for the Swedes
possession of his fortress of Koenigshofen, and with it the key of the
whole province. At the news of this rapid conquest, dismay seized all
the Roman Catholic towns of the circle. The Bishops of Wurtzburg and
Bamberg trembled in their castles; they already saw their sees
tottering, their churches profaned, and their religion degraded. The
malice of his enemies had circulated the most frightful representations
of the persecuting spirit and the mode of warfare pursued by the Swedish
king and his soldiers, which neither the repeated assurances of the
king, nor the most splendid examples of humanity and toleration, ever
entirely effaced. Many feared to suffer at the hands of another what in
similar circumstances they were conscious of inflicting themselves.
Many of the richest Roman Catholics hastened to secure by flight their
property, their religion, and their persons, from the sanguinary
fanaticism of the Swedes. The bishop himself set the example. In the
midst of the alarm, which his bigoted zeal had caused, he abandoned his
dominions, and fled to Paris, to excite, if possible, the French
ministry against the common enemy of religion.

The further progress of Gustavus Adolphus in the ecclesiastical
territories agreed with this brilliant commencement. Schweinfurt, and
soon afterwards Wurtzburg, abandoned by their Imperial garris