As for the plausibility of Winkelried's deed, the single-handed breaking of a line of pikes to open a breach, which is then exploited to turn the course of the battle, a parallel is adduced by Liebenau is that of one Johann Stühlinger, a "ministerialis" in the service of Regensburg, who in a 1332 battle against Berne and Solothurn broke through the ranks of the enemy with his warhorse, creating just such an opening, which was exploited to the cost of 400 men on the Bernese side.