Thirty thousand pounds' worth of plunder, and ten baggage waggons, with all the plate of the fugitives, were taken, and all their munitions of war; however, they had buried in the earth a great quantity of arms. In 1850, a labourer, when digging a trench in a field near the outworks of old Frankfort, came upon a depot of old weapons, decaying, and covered with rust. Among them were 2000 matchlocks, being part of the munition concealed by the garrison of Count Schomberg. As soon as his wounds permitted him to travel, Walter Butler left Frankfort, for Gustavus was too generous to detain as a prisoner one whose gallant spirit was writhing under unmerited reproaches. He travelled towards Silesia, and sought out a Colonel Behem, who had commanded a regiment of German infantry at the defence of Frankfort, and to whom he was fortunate enough in tracing the first of the slanderous reports, and challenged him to single combat on horse or foot, with sword and pistol; but, awed by the justice of Butler's cause, his known skill and courage, and by the formidable testimonial of Gustavus Adolphus, he signed a full retractation and apology. Butler then went into Poland, and at his own expense raised a fine regiment of cavalry, all clad in buff coats, with back and breast pieces, and triple-barred helmets. While recruiting there he daily ran the risk of being murdered by the Polish peasantry, who were averse to the Imperial service; but he marched as soon as his new levy was completed, and on his return to the Emperor's army took possession of Prague, the capital of Bohemia. This made him more than ever a favourite of the great Wallenstein. Soon after this exploit he married the Countess of Fondowna. He was at Prague when the ambitious Wallenstein became false to the interests of the Empire, and fell into the deadly snare prepared for him at Egra by Colonel James Butler and others, on whose unscrupulous fidelity the Imperial court could rely. Had Walter not been a rigidly honourable man, he might have realized a large fortune by the death of his leader, who, being always fond of foreign troops, wished him to return to Ireland for the purpose of raising a body of infantry to cope with the Scottish brigades of Gustavus. For this purpose he offered him money to the amount of 32,000_l._ sterling by bills of exchange at Hamburg, and ready cash, which was lying useless at his palace of Sagan, on the bank of the Bober, in Prussian Silesia. But he declined the service with these remarkable words--"Poor old Ireland has been drained too much of her men already." This anecdote, says Walter Harte in his history, I learned at Vienna.