Russia. A History

Half a century after the Mongols set them on the throne of Vladimir, the princes of Moscow had transformed their realm. In addition to its visual signs, their growing power was manifested in Prince Dmitrii’s military victories first over a challenger from Tver, and then over a general from the Golden Horde itself—Mamai. These confrontations occurred while the discord within the Golden Horde, begun concurrently with his own ascension to the throne, intensified. Dmitrii, indeed, had obtained his patent from Mamai, to whom he had pledged to deliver the tribute gathered from his lands. Yet Dmitrii found it increasingly difficult to make those tribute payments for at least two reasons. As the conflicts in the horde disrupted the Volga markets in the 1360s and 1370s, Moscow’s revenue from commercial customs and transit fees collected from its Volga trade correspondingly declined. Second, Novgorod, whose commercial activities were responsible for importing silver into the Russian lands, was quarrelling with its Baltic Sea trading partners, who restricted the flow of silver to Novgorod and even temporarily suspended trade with Novgorod.

Mamai gambled on the supposition that he might receive larger tribute payments from another prince, and transferred the patent for the Vladimir throne twice, in 1370 and 1375, to the prince of Tver—Dmitrii’s chief rival. These actions provoked open warfare between Moscow and Tver in 1371–2 and 1375. Despite the fact that Tver received support from Mamai as well as Lithuania, both outbursts of hostility ended in victory for Moscow. In 1375 the prince of Tver agreed to recognize Dmitrii as his ‘elder brother’ and as the legitimate grand prince of Vladimir; Mamai also returned the patent for the throne to Dmitrii.

Nevertheless, within a few years Dmitrii and his patron Mamai were at war. Because of the mounting discord in the horde and the seizure of Sarai by Tokhtamysh (a Mongol khan from the eastern half of the horde’s territory), Mamai’s own situation had become desperate. To defeat Tokhtamysh he had to obtain supplementary troops, his own forces having been weakened by a bout of bubonic plague. For that he required funds. Mamai, therefore, demanded that Dmitrii pay the tribute in full. But Dmitrii, whose revenues had been reduced, hesitated. Mamai raised an army and, with promises of assistance from Lithuania, advanced upon his former protégé. Dmitrii gathered an army drawn from the numerous principalities over which he and his forefathers had established ascendancy. On 8 September 1380 the two armies fought in the battle of Kulikovo; it was here Dmitrii earned the epithet ‘Donskoi’. Dmitrii’s armies were victorious over Mamai, whose Lithuanian allies failed to arrive. Mamai suffered another defeat in an encounter with Tokhtamysh the following year. Having restored order in the horde, Tokhtamysh launched his own campaign against Dmitrii and the other Russian princes in 1382. He laid siege to Moscow, which had been abandoned by Dmitrii, and restored Mongol authority over the Russian principalities. He reasserted the horde’s demand for tribute and reconfirmed the Rus princes on their thrones.

The battle of Kulikovo did not terminate the Muscovite princes’ subordination to the Mongol khans, but it did reduce their dependence upon them for legitimacy. The battle demonstrated Moscow’s pre-eminence among the principalities of north-eastern Rus; no other branch of Riurikids ever again challenged the seniority of the Muscovite line and its claim to the position of grand prince of Vladimir. Although the princes of Moscow formally recognized the suzerainty of the khan of the Golden Horde, their practice, begun by Dmitrii Donskoi, of naming their own heirs implicitly minimized the significance of the khan’s right to bestow the patent to rule.

The Daniilovich success, however, was still incomplete. Although Dmitrii Donskoi had been able to mobilize a large number of northeastern principalities to defeat Mamai in 1380, some important lands remained beyond the range of his authority. One was Nizhnii Novgorod, whose prince refused to place his retainers under Muscovite command at the battle of Kulikovo. Another was Tver; despite its prince’s recent recognition of Dmitrii’s seniority, its forces did not join Dmitrii’s army. A third land, Novgorod, had similarly declined to participate.