But ’tis plain the Swede was resolved on a war with the emperor.  His Swedish majesty might, and indeed could not but foresee that if he once showed himself with a sufficient force on the frontiers of the empire, all the Protestant princes would be obliged by their interest or by his arms to fall in with him, and this the consequence made appear to be a just conclusion, for the Electors of Brandenburg and Saxony were both forced to join with him.

First, they were willing to join with him—­at least they could not find in their hearts to join with the emperor, of whose power they had such just apprehensions.  They wished the Swedes success, and would have been very glad to have had the work done at another man’s charge, but, like true Germans, they were more willing to be saved than to save themselves, and therefore hung back and stood upon terms.

Secondly, they were at last forced to it.  The first was forced to join by the King of Sweden himself, who being come so far was not to be dallied with, and had not the Duke of Brandenburg complied as he did, he had been ruined by the Swede.  The Saxon was driven into the arms of the Swede by force, for Count Tilly, ravaging his country, made him comply with any terms to be saved from destruction.

Thus matters stood at the end of the Diet at Ratisbon.  The King of Sweden began to see himself leagued against at the Diet both by Protestant and Papist; and, as I have often heard his Majesty say since, he had resolved to try to force them off from the emperor, and to treat them as enemies equally with the rest if they did not.

But the Protestants convinced him soon after, that though they were tricked into the outward appearance of a league against him at Ratisbon, they had no such intentions; and by their ambassadors to him let him know that they only wanted his powerful assistance to defend their councils, when they would soon convince him that they had a due sense of the emperor’s designs, and would do their utmost for their liberty.  And these I take to be the first invitations the King of Sweden had to undertake the Protestant cause as such, and which entitled him to say he fought for the liberty and religion of the German nation.

I have had some particular opportunities to hear these things form the mouths of some of the very princes themselves, and therefore am the forwarder to relate them; and I place them here because, previous to the part I acted on this bloody scene, ’tis necessary to let the reader into some part of that story, and to show him in what manner and on what occasions this terrible war began.