Russian architect. It is thought that his full name was Ivan Yakovlevich Barma (Postnik means "Faster", a term used for several religious figures). He is famous as one of the architects and builders of Saint Basil's Cathedral on Red Square in Moscow. In cooperation with another master, Ivan Shirlai, designed the walls of the Kazan Kremlin and the Cathedral of the Annunciation in Kazan in 1561 and 1562, just after the completion of St. Basil's. In 1588, he also designed the northeast chapel of St. Basil's (where Basil himself is buried). //