This publication has the character of a scientific bomb: as a result of many years and multidimensional study of the text "Words about Igor's Regiment," St. Petersburg linguist A.A. Burykin proposed a convincing scientific theory of who the author of this famous monument could be. The theory of A.A. Burykin is based on interdisciplinary data, according to which the author of the "Word..." was not an unknown singer, vigilante or chronicler, but an unusually gifted person whose name was known earlier - an architect, artist, goldsmith, writer, translator Kuzmische Kiyanin.