Misail Pstruch
Misail Pstruch (; born undetermined date, died fall of 1480 or winter of 1480/81) was an Ancient Rus Eastern Orthodox metropolitan–elect bishop of Kiev and all Rosiya in the Grand Duchy of Lithuania. Misail is better known for his letter to Pope Sixtus IV in connection to the Florentine Union. His real last name was Pestrutsky of Belarusian boyar family Drutsky-Sokolinsky-Babych. Misail established on his funds the Saint Trinity monastery in Czereja (today Chareja, Belarus) where he served as an archimandrite. In the beginning of 1450 he was appointed as the Archbishop of Smolensk. In 1454  (or 1456) he traveled to the Grand Prince of Moscow Vasily the Blind for the miraculous icon of Theotokos of Smolensk that was taken away in 1404. The Grand Prince of Moscow Vasily the Blind released the icon with special church honors and left in Moscow its exact copy. Following the death of Metropolitan bishop of Kiev Gregory the Bulgarian in 1474, Misail became his see successor. Confirmation of Misail at the Kiev Metropolitan see by the King of Poland and Grand Duke of Lithuania Casimir IV Jagiellon became delayed. Delay in appointment of Misail might have been delayed according  to Mykhailo Hrushevsky due to resistance of the Latin Church clergy caused by the precedent of appointing Gregory the Bulgarian to the metropolitan see by the Pope. During that time in 1476 the Ecumenical Patriarch of Constantinople Raphael I consecrated a native of the Grand Duchy of Tver Spyridon as the Metropolitan bishop of Kiev. After arriving to the Grand Duchy of Lithuania, Spyridon was imprisoned by state authorities and was released only in 1482 (after the death of Misail).