Mozart (Piano Sonata No.15); Pompeo Girolamo Batoni (1708-1787)

Mozart: Piano Sonata No. 15 in F major, K. 533;

Pompeo Girolamo Batoni (1708-1787) was an Italian painter.
https://en.wikipedia.org/wiki/Pompeo_Batoni

Those paintings are shown in the following hyperlink
https://www.facebook.com/hsienchung.wu/media_set?set=a.967915700029260.1073742036.100004325167247&type=3