(posted on behalf of Jakub Pigoń with details from Ukrainian Wikipedia entry)
Oleksandr Kyslyuk, a historian and classicist, was born in 1962. He graduated from Taras Shevchenko National University of Kyiv and was active as a language teacher (including ancient Greek) and, in particular, as a translator from Greek, Latin and other languages at the Kyiv Theological Academy and Seminary of the UOC-KP (1993-2005). Most recently, he was a senior lecturer at the Department of Theory and History of State and Law of the Institute of Political Science and Law of the National Pedagogical University MP Dragomanova, where he conducted classes in Latin and Roman law. Aristotle's Politics, Xenophon's Anabasis and a treatise by Thomas of Aquinas were among the works he rendered into Ukrainian. He died on March 5, 2022 in Bucha near Kyiv.
His bibliography of translations and articles can be found in his entry in the Ukrainian Wikipedia.