Jakub Walerian Tumanowicz was a Catholic priest, a talented preacher, and a bishop of the Armenian Catholic Church in Lviv. Armenian by origin. He studied at the Pontifical Collegium of Theatines in Lviv. He was engaged in the construction of new churches. Along with portraits of burghers and noblemen, images of clergymen took a significant place in Ukrainian painting. They were painted according to the canonical scheme in the clothes of churchmen of a certain rank. Images of prominent church figures, namely metropolitans, archbishops, and representatives of the clerical elite were introduced into the portrait gallery. The works were often painted in restrained colors, without excessive decorativeness, giving them special expressiveness and attention to the faces and characters depicted. The portrait shows an elderly clergyman in a slight turn to the left. With his left hand, the man touches the cross hanging over the cape, and on his head, there is a pileolus, a traditional headdress of clergymen of the Roman Catholic Church. The artist aimed to reveal the inner state of the person portrayed. In the upper corner of the portrait there is a coat of arms.