Postnik Yakovlev - biografía

Is most famous as one of the architects and builders of Saint Basil's Cathedral on Red Square in Moscow (the other architect is Barma). Originally from Pskov, it is thought that he was nicknamed "Barma" (Барма) ("the mumbler"), although it might be that his full name was, in fact, Ivan Yakovlevich Barma. Barma might also be Yakovlev's assistant.