The toqui Loncothegua resigned in 1618, and was succeeded in the supreme command of the Araucanian armies by an officer named Lientur, whose military expeditions were always so rapid and unexpected, that the Spaniards used to call him the wizard. All his designs were perfectly seconded by Levipillan, his vice toqui. Though the line of the Biobio was amply secured by fortresses and centinels, these indefatigable enemies always contrived to pass and repass without experiencing any material loss. The first enterprise of Lientur was the capture of a convoy of four hundred horses, which were intended to remount the Spanish cavalry. He next ravaged the province of Chilian, and slew the corregidor with two of his sons and several of the magistrates, who had attempted to resist him in the field. Five days afterwards, he proceeded towards St. Philip of Austria, otherwise called Yumbel, a place about sixty miles to the east of Conception, with six hundred infantry and four hundred horse, all of whom he sent out in various detachments to ravage the surrounding country, leaving only two hundred men to guard the narrow defile of Congrejeras. Provoked at this daring enterprise, Robolledo, the commandant of Yumbel, sent seventy horse to take possession of the pass and cut off the retreat of the toqui; but they were received with such bravery by the Araucanian detachment, that they were compelled to retire for security to a neighbouring hill, after losing their captain and eighteen of their number. Robolledo sent three companies of infantry and all the rest of his cavalry to their aid; but Lientur who had by this time collected all his troops together, fell upon the Spaniards, notwithstanding the continual fire of their musquetry, and put their cavalry to flight at the first charge. The infantry, thus left exposed, were almost all cut to pieces, thirty-six of them only being made prisoners, who were distributed among the several provinces of the Arancanian confederacy. If Lientur had then invested Yumbel it must have fallen