A celebrated pianist, born at Geneva; early displayed a talent for music and languages; was intended and trained for a diplomatic career, but, overcoming his father's scruples, followed his bent for music, and soon took rank as one of the most brilliant pianists of the age; "Thalberg," said Liszt, "is the only pianist who can play the violin on the key-board"; composed a large number of pianoforte pieces, chiefly fantasias and variations (1812-1871).