It grew louder and louder the farther it traveled, and its sound called the knights into the temple, where Lohengrin received his orders from the Holy Grail.
The day appointed for the duel dawned, and just as the heralds sounded the last call for Else's champion to appear, the swan boat glided up the Rhine, and Lohengrin sprang into the lists, after thrice blowing his magic horn.
[Sidenote: Else rescued by Lohengrin.] With a God-sent champion opposed to a liar, the issue of the combat could not long remain doubtful.

Soon Frederick of Telramund lay in the dust and confessed his guilt, while the people hailed the Swan Knight as victor.

Else, touched by his prompt response to her appeal, and won by his passionate wooing, then consented to become his wife, without even knowing his name.

Their nuptials were celebrated at Antwerp, whither the emperor went with them and witnessed their marriage.
Lohengrin had cautioned Else that she must never ask his name; but she wished to show that he was above the people who, envying his lot, sought to injure him by circulating malicious rumors, so she finally asked the fatal question.

Regretfully Lohengrin led her into the great hall, where, in the presence of the assembled knights, he told her that he was Lohengrin, son of Parzival, the guardian of the Holy Grail.