Theophanes the Greek

Theophanes the Greek (Russian: Феофан Грек, romanized: Feofan Grek; Greek: Θεοφάνης; c. 1330/1340 – c. 1410) was a Byzantine Greek artist, active mainly in Russia.

He greatly influenced the style of painting in Novgorod and Moscow in the 15th century. He is also known as being the teacher and mentor of Andrei Rublev, the greatest Russian icon painter of his time.

Notable works: Our Lady of the Don, Theotokos of Tolga

Source: Wikipedia — https://en.wikipedia.org/wiki/Theophanes_the_Greek