After a time his wife was able to entice him from the quiet home (first in Leipsic, then Dresden, and finally Duesseldorf) that sheltered this scene of domestic harmony. Sometimes her tours were taken alone, but at last she was able to draw him with her into the world. In Germany, in the Netherlands, in Austria, even in Russia, constant triumphs awaited them. There were a few exceptions, chief among them being Vienna, the city where Mozart struggled so long in vain, and where Gluck was unable to produce more than a passing impression by his great operatic reforms. But nearly all the places they visited offered admiration and incense to the faithful pair of artists. Through Schumann's genius, that of his wife was influenced, and Clara Schumann became far greater than Clara Wieck had ever been. She became a true priestess of art. She did not rest until she gave the world a clear understanding of the depth of thought in his great works. She made her fame serve his, and considered the recognition of his qualities her own reward. Yet it still happened at times that this recognition came slowly, and in Vienna, as late as 1846, he was spoken of merely as the husband of Clara Wieck, and after the court concert given by her, some one turned to him with the question: "Are you musical, too?" Gradually the perfect happiness was marred by the growing sickness of Schumann. Always extremely nervous and excitable, he had on one or two earlier occasions been forced to forego work. In 1851 the disease became evident again. By degrees his conduct grew more and more eccentric, and he became a victim of actual delusions. He often insisted that he heard one particular note, or certain harmonies sounding, or voices whispering messages of hope or of sorrow. One night the spirits of Schubert and Mendelssohn seemed to reveal a theme to him, upon which he tried to complete a set of variations. At times he would work calmly and sensibly, but one day, in a fit of mental anguish, he left his house, alone, and threw himself into the Rhine. Rescued by some boatmen, he went home to experience a few more lucid periods, but insanity gradually mastered him. His last two years were spent in a private asylum near Bonn, where he died July 29, 1846. His wife, who had been on a tour in London, returned just in time to witness his end. He was buried in Bonn, near the tombs of Beethoven and Schubert.