Here Wallenstein formed in front of his position a threefold barrier of felled trees woven and interlaced with each other, each barrier rising in a semicircle one above the other.

Before the Swedish cannon ceased to fire the new position of the Imperialists had been made impregnable.
Unfortunately for Gustavus he had at this moment lost the services of the best officer in his army, Sir John Hepburn, whom he had always regarded as his right hand.

The quarrel had arisen from some trifling circumstance, and Gustavus in the heat of the moment made some disparaging allusion to the religion of Hepburn, who was a Catholic and also to that officer's love of dress and finery.

The indignant Hepburn at once resigned his commission and swore never again to draw his sword in the service of the king--a resolution to which he adhered, although Gustavus, when his anger cooled, endeavoured in every way to appease the angry soldier.
As he persisted in his resolution Colonel Munro was appointed to the command of the Green Brigade.

It is probable that the quarrel was the consummation of a long standing grievance.