But, in the meantime, the siege of Pilsen was making such progress that the Catholics and moderate Utraquists began to fear that the victory, which seemed almost within their grasp, might be taken from them after all; and Sigismund wrote to Ulric of Rosenberg that the Taborites were actually preparing to send a special embassy of their own to Basel; and that, unless the Calixtines would go to Pilsen, to hinder the progress of Procop, the Council of Basel would after all be compelled to make concessions to the extreme party. While things were in this state, Procop suddenly received news in his camp that the bitterness between the two parties in Prague had at last led to a final outbreak. The Taborites of the New Town had resolved to resist the authority of the newly elected Captain, and had fortified their division of Prague against him; whereupon Meinhard of Neuhaus had suddenly stormed the New Town and put the Taborites to the sword. Thereupon Procop at once resolved to abandon the siege of Pilsen, and to call on all the Taborites to follow him to Prague. Meinhard rallied his forces for the defence; and the two armies met on the 30th of May, 1434, near the town of Lipaný. The Taborites followed the plan, so often adopted by Z̆iz̆ka, of fortifying their camp by an arrangement of their baggage waggons. From behind these they threw shells into the camp of the enemy, which so irritated the soldiers that they called on the nobles to lead them to the attack. The nobles, however, were resolved to accomplish their purposes by stratagem. The inferior troops were placed in the front, with orders to give way at the first attack. The Taborites fell into that trap; and, seeing the enemy, as they supposed, flying before them, they left their entrenchments and pursued them. The picked troops of the nobles then rushed forward, seized on the deserted waggons, and attacked the Taborites in the rear. The supposed fugitives, at the same time, turned upon their pursuers; the Taborite army, surrounded on all sides, was cut to pieces; and Procop and the other leaders died, fighting to the last.