activity and fraternal unity against the common enemy. After a short
stay in Nuremberg, he followed his army to the Danube, and appeared
unexpectedly before the frontier town of Donauwerth. A numerous
Bavarian garrison defended the place; and their commander, Rodolph
Maximilian, Duke of Saxe Lauenburg, showed at first a resolute
determination to defend it till the arrival of Tilly. But the vigour
with which Gustavus Adolphus prosecuted the siege, soon compelled him to
take measures for a speedy and secure retreat, which amidst a tremendous
fire from the Swedish artillery he successfully executed.

The conquest of Donauwerth opened to the king the further side of the
Danube, and now the small river Lech alone separated him from Bavaria.
The immediate danger of his dominions aroused all Maximilian's activity;
and however little he had hitherto disturbed the enemy's progress to his
frontier, he now determined to dispute as resolutely the remainder of
their course. On the opposite bank of the Lech, near the small town of
Rain, Tilly occupied a strongly fortified camp, which, surrounded by
three rivers, bade defiance to all attack. All the bridges over the
Lech were destroyed; the whole course of the stream protected by strong
garrisons as far as Augsburg; and that town itself, which had long
betrayed its impatience to follow the example of Nuremberg and
Frankfort, secured by a Bavarian garrison, and the disarming of its
inhabitants. The Elector himself, with all the troops he could collect,
threw himself into Tilly's camp, as if all his hopes centred on this
single point, and here the good fortune of the Swedes was to suffer
shipwreck for ever.

Gustavus Adolphus, after subduing the whole territory of Augsburg, on
his own side of the river, and opening to his troops a rich supply of
necessaries from that quarter, soon appeared on the bank opposite the