Having withstood several editions and has long become a classic of the historical and biographical genre, the book by the writer Yuri Loshchits tells about the outstanding commander and statesman of Ancient Russia, the blessed Prince Dmitry Ivanovich Donskoy (1350-1389). The narrative is constructed by the author on the basis of documentary material, with the involvement of literary and other monuments of the era. The book recreates portraits of Dmitry's comrades in the fight against the Horde - his cousin Prince Vladimir Andreevich the Brave, Dmitry Bobrok Volynsky, Metropolitan Alexei, the 'prayer book of the Russian land' of St. Sergius of Radonezh and other contemporaries of the Grand Duke of Moscow.