Ferdinand; the Duke of Lorraine brought up a considerable body of
auxiliaries in person, and the Cardinal Infante joined him from Italy
with 10,000 men. In order to drive the enemy from the Danube, the new
general undertook the enterprise in which his predecessor had failed,
the siege of Ratisbon. In vain did Duke Bernard of Weimar penetrate
into the interior of Bavaria, with a view to draw the enemy from the
town; Ferdinand continued to press the siege with vigour, and the city,
after a most obstinate resistance, was obliged to open its gates to him.
Donauwerth soon shared the same fate, and Nordlingen in Swabia was now
invested. The loss of so many of the imperial cities was severely felt
by the Swedish party; as the friendship of these towns had so largely
contributed to the success of their arms, indifference to their fate
would have been inexcusable. It would have been an indelible disgrace,
had they deserted their confederates in their need, and abandoned them
to the revenge of an implacable conqueror. Moved by these
considerations, the Swedish army, under the command of Horn, and Bernard
of Weimar, advanced upon Nordlingen, determined to relieve it even at
the expense of a battle.

The undertaking was a dangerous one, for in numbers the enemy was
greatly superior to that of the Swedes. There was also a further reason
for avoiding a battle at present; the enemy's force was likely soon to
divide, the Italian troops being destined for the Netherlands. In the
mean time, such a position might be taken up, as to cover Nordlingen,
and cut off their supplies. All these grounds were strongly urged by
Gustavus Horn, in the Swedish council of war; but his remonstrances were
disregarded by men who, intoxicated by a long career of success, mistook
the suggestions of prudence for the voice of timidity. Overborne by the
superior influence of Duke Bernard, Gustavus Horn was compelled to risk
a contest, whose unfavourable issue, a dark foreboding seemed already to