Alexei Petrovich Antropov (25 March [O.S. 14 March] 1716 - 23 June [O.S. 12 June] 1795) was a Russian painter active primarily in St. Petersburg, where he was born and died. He also worked in Moscow and frescoed churches in Kiev. His preferred medium was oil, but he also painted miniatures and icons. The full Wikipedia article can be found here.

A short biographical sketch of Antropov, as well as the subjects of some of his portraits, can be found at the Olga's Gallery website, with a large selection of his portraits on the same website.