Two years later, the proud father took Wolfgang and his sister on a concert tour to Vienna. So well did the boy play, that the Empress Maria Theresa held him in her arms, and kissed him heartily. One day as he was walking between two of her daughters, he slipped on the polished floor and fell. Marie Antoinette, afterward Empress of France, raised him up, whereupon he said, "You are very kind; I will marry you." The father was alarmed at this seeming audacity; but the lovely Princess playfully kissed him.
The next year he was taken to Paris, and here two sets of sonatas, the works of a boy of seven, were brought out, dedicated to Marie Antoinette. The children sat at the royal table, poems were written about them, and everywhere they excited wonder and admiration; yet so excessively modest was young Mozart, that he cried when praised too much. In London, Bach took the boy between his knees, and alternately they played his own great works and those of Handel at sight. Royalty gave them "gold snuffboxes enough to set up a shop," wrote home the father; "but in money I am poor." Wolfgang was now taken ill of inflammatory fever; but he could not give up his music. A board was laid across the bed, and on this he wrote out his thoughts in the notes. Finally, with ardor dampened at their lack of pecuniary success, Leopold Mozart took his dear ones back to quiet Salzburg.
Here the cold archbishop, discrediting the reports of the boy's genius, shut him up alone for a week to compose an oratorio, the text furnished by himself. Mozart, only ten years old, stood the test brilliantly. The next year a second tour was taken to Vienna, to be present at the marriage of the Archduchess Maria Josepha. The bride died from smallpox shortly after their arrival: and poor Wolfgang took the disease, and was blind for nine days. When he recovered, the musicians, moved by envy and jealousy, would not be outdone by a boy of twelve, who was equally at home in German or Italian opera, and determined to hiss off the stage whatever he might compose. Sad at heart, and disappointed, again the Mozarts went back to the old home.
Two years later, after much self-sacrifice, the father took his boy to Italy for study. The first day in Passion Week they went to the Sistine Chapel to hear the famous "Miserere" of Allegri, which was considered so sacred, that the musicians were forbidden to take home any part of it, or copy it out of the chapel, on pain of excommunication. Wolfgang, as soon as he reached his lodgings, wrote it out from memory; which remarkable feat for a boy of fourteen astonished all Rome. So wonderfully did he play, that the audience at Naples declared there was witchcraft in the ring which he wore on his left hand, and he was obliged to remove it. At Milan, when he was nearly fifteen, he composed the opera "Mithridate," conducting it himself, which was given twenty nights in succession to enthusiastic audiences. After this came requests for operas from Maria Theresa, Munich, and elsewhere. He was busy every moment. Overworked, he was often ill; but the need for money to meet heavy expenses made constant work a necessity. All this time he wrote beautiful letters to his mother and sister. "Kiss mamma's hand for me a thousand billion times," is the language of his loving heart. He could scarcely be said to have had any childhood; but he kept his tenderness and affection to the last of his life.