Thomas Linley the younger
Thomas came from a musical family.  His father, also called Thomas Linley, was a composer, singing teacher and harpsichord player.  His young son  was soon showing exceptional musical skills.  We do not know who taught him the violin in his early years, but people writing at the time all say he was a brilliant player.  He went to Italy to study the violin and composition with Nardini in Florence. He met Mozart there in 1770 and he also met Charles Burney in the same year.  Burney wrote that Linley was the most promising genius of the time.