A painting by this artist was identified with one mentioned in The Book of One Hundred Chapters upon its 1904 restoration, during which a Palekh-style “renewal” was stripped away. Many of this artist’s works, such as the interior of the Assumption Cathedral, were made with his frequent collaborator Daniel Chorny. After his death, this artist was succeeded by Dionisius as the head of his school. (15[1])From left to right, (15[1])the background of a painting by this artist features a house, tree, and mountain, the latter two of which are likely the (*) Oak of Mamre and Mount Moriah. The head of a calf sits in a cup on the central table in a work by this artist of a scene from Genesis 18, made for the Lavra of Saint Sergius, which focuses on three angelic visitors. For 10 points, (10[1])the Trinity is the only positively identified work by what medieval Russian icon painter? ■END■ (10[2]0[1])