 Leopold then took the entire family to Vienna, on a trip that lasted for three months.He had secured invitations from several noble patrons, and within three days of arriving the children were playing at the palace of Count Collalto.Among those present was the Viennese Treasury councillor and future prime minister Karl von Zinzendorf, who noted in his diary that "a little boy, said to be only five-and-a-half years old [Wolfgang was actually nearly seven], played the harpsichord".