The Landgrave appears just as their song is ended, to congratulate Elizabeth upon having at last left her seclusion and honoured the minstrels with her presence. In conclusion, he declares that, as all the contestants know she will be there to bestow the prize, the rivalry will be greater than ever. He is interrupted in this speech, however, by the entrance of knights and nobles, who file in singing a chorus in praise of the noble hall, and of Hermann, Landgrave of Thuringia, the patron of song, whom they repeatedly cheer. When they have all taken their appointed places, the Landgrave, rising in his seat, addresses them, bidding them welcome, reminding them of the high aims of their art, and telling them that, while the theme he is about to propose for their lays is love, the princess herself will bestow as prize whatever the winner may ask:
Therefore hear now the theme you all shall sing.
Say, what is love? by what signs shall we know it?
This be your theme. Whoso most nobly this can tell,
Him shall the princess give the prize.
He may demand the fairest guerdon:
I vouch that whatsoe'er he ask is granted.
Up, then, arouse ye! sing, O gallant minstrels!
Attune your harps to love. Great is the prize,
At the summons of the heralds, Wolfram von Eschenbach first takes up the strain, and as for him love is an ardent desire to see the loved one happy, a longing to sacrifice himself if need be, and an attitude of worshipful devotion, he naturally sings an exalted strain. It finds favour with all his hearers,with all except Tannhäuser, who, having tasted of the passionate joys of unholy love, cannot understand the purity of Wolfram's lay, which he stigmatises as cold and unsatisfactory.
In his turn, he now attunes his harp to love, and sings a voluptuous strain, which not only contrasts oddly with Wolfram's performance, but shows love merely as a passion, a gratification of the senses. The minstrels, jealous for their art, indignantly interrupt him, and one even challenges Tannhäuser to mortal combat:
To mortal combat I defy thee!
Shameless blasphemer, draw thy sword!
As brother henceforth we deny thee:
Thy words profane too long we've heard!
If I of love divine have spoken,
Its glorious spell shall be unbroken
Strength'ning in valour, sword and heart,
Altho' from life this hour I part.
For womanhood and noble honour
Through death and danger I would go;
But for the cheap delights that won thee
I scorn them as worth not one blow!
This minstrel's sentiments are loudly echoed by all the knights present, who, having been trained in the school of chivalry, have an exalted conception of love, hold all women in high honour, and deeply resent the attempt just made to degrade them. Tannhäuser, whose once pure and noble nature has been perverted and degraded by the year spent with Venus, cannot longer understand the exalted pleasures of true love, even though he has just won the heart of a peerless and spotless maiden, and when Wolfram, hoping to allay the strife, again resumes his former strain, he impatiently interrupts him.
Recklessly now, and entirely wrapped up in the recollection of the unholy pleasures of the past, Tannhäuser exalts the goddess of Love, with whom he has revelled in bliss, and boldly reveals the fact that he has been tarrying with her in her subterranean grove.
This confession fills the hearts of all present with nameless terror, for the priests have taught them that the heathen deities are demons disguised. The minstrels one and all fall upon Tannhäuser, who is saved from immediate death at their hands only by the prompt intervention of Elizabeth.
Broken-hearted, for now she knows the utter unworthiness of the man to whom she has given her heart, yet loving him still and hoping he may in time win forgiveness for his sin, she pleads so eloquently for him that all fall back. The Landgrave, addressing him, then solemnly bids him repent, and join the pilgrims on their way to Rome, where perchance the Pope may grant him absolution for his sin:
One path alone can save thee from perdition,
From everlasting woe,by earth abandon'd,
One way is left: that way thou now shalt know.
A band of pilgrims now assembled
From every part of my domain;
This morn the elders went before them,
The rest yet in the vale remain.
'Tis not for crimes like thine they tremble,
And leave their country, friends and home,
Desire for heav'nly grace is o'er them:
They seek the sacred shrine at Rome.
Urged to depart by the Landgrave, knights, nobles, and even by the pale and sorrowful Elizabeth, Tannhäuser eagerly acquiesces, for now that the sudden spell of sensuous love has departed, he ardently longs to free his soul from the burden of sin. The pilgrims' chant again falls upon his ear, and, sobered and repentant, Tannhäuser joins them to journey on foot to Rome, kneeling at every shrine by the way, and devoutly praying for the forgiveness and ultimate absolution of his sins.
When the curtain rises upon the third and last act of this opera, one whole year has slowly passed, during which no tidings of the pilgrims have been received. It is now time for their return, and they are daily expected by their friends, who have ardently been praying that they may come home, shrived and happy, to spend the remainder of their lives at home in peace. No one has prayed as fervently as the fair Elizabeth, who, forgetting her wonted splendour, has daily wended her way down the hillside, to kneel on the rude stones in front of the Virgin's wayside shrine. There she has daily prayed for Tannhäuser's happy return, and there she kneels absorbed in prayer when Wolfram comes down the path as usual. He has not forgotten his love for her, which is as deep and self-sacrificing as ever, so he too prays that her lover may soon return from Rome, entirely absolved, and wipe away her constant tears. Elizabeth is suddenly roused from her devotions by the distant chant of the returning pilgrims. They sing of sins forgiven, and of the peace won by their long, painful journey to Rome. Singing thus they slowly file past Wolfram and Elizabeth, who eagerly scan every face in search of one whom they cannot discover.