About the book: 2017 / Tver Prince Mikhail Yaroslavich (1271-1318) lived in the terrible times of Horde rule. He was the first of the Russian princes to defeat the Mongols in the Battle of Bortenev in 1317, for which he paid with his life by being martyred in the Horde. And several centuries later he was canonized and is now revered by Orthodox people as the heavenly patron of the city of Tver and the entire Russian land. The author of the book, Doctor of Historical Sciences, Professor Nikolai Sergeevich Borisov, talks about the life and activities of the Tver prince with maximum detail and objectivity, drawing on all currently available historical sources and restoring a complex and diverse picture of the struggle between Moscow and Tver for supremacy over North-Eastern Russia at the end of the 13th - first decades of the 14th century.