Meanwhile a son was born to Louis, and in celebration of the event a tourney was held at Heidelberg, competitors coming from far and near, all of them eager to win the golden sword which was promised to the man who should prove champion. One after another they rode into the lists, Frederick being among the number; and as each presented himself his name was called aloud by the herald. At length there came one of whom this functionary cried, "This is a nameless knight who bears a plain shield"; and at these words a murmur of disapproval rose from the crowd, while everyone looked up to where Louis sat, awaiting his verdict on the matter. But he signified that the mysterious aspirant should be allowed to show his prowess, and a minute later, all who were to take part being now assembled, Frederick and another competitor were stationed at opposite ends of the lists, and the signal given them to charge. Forward thundered their steeds, a fierce combat ensued; but Frederick proved victor, and so another warrior came forward to meet him. He, too, was worsted, and soon it appeared as though the young Palatine prince would surely win the coveted golden sword; for foeman after foeman he vanquished, and eventually only two remained to confront him--the nameless knight and another who had entered the lists under a strange, though less suspicious, pseudonym. The latter expressed his desire to fight last of all, and so the nameless one galloped toward Frederick, and their lances clashed together. The Palatine prince bore his adversary to the ground, apparently conquering him with complete ease; and fearing he had wounded him mortally, Frederick dismounted with intent to succour him. But the speedy fall had been a feint, and as the victor bent down the mysterious knight suddenly drew a dagger, with intent to plunge it into the prince's heart. So stealthy a deed was unknown in the history of the tourney. The crowd gazed as though petrified, and Frederick's life would doubtless have been lost--for he was weak after his many joustings--had not he who had asked to fight last of all galloped forward instantly on marking the drawn weapon and driven his lance into the body of the would-be murderer!