Treaty of Lyubutsk was a peace treaty signed in summer of 1372 between

Algirdas Algirdas ( be, Альгерд, Alhierd, uk, Ольгерд, Ольґерд, Olherd, Olgerd, pl, Olgierd; – May 1377) was the Grand Duke of Lithuania. He ruled the Lithuanians and Ruthenians from 1345 to 1377. With the help of his bro ...

Grand Duke of Lithuania The monarchy of Lithuania concerned the monarchical head of state of Lithuania, which was established as an absolute and hereditary monarchy. Throughout Lithuania's history there were three ducal dynasties that managed to stay in power—House ...

, and

Dmitri Donskoi Saint Dmitry Ivanovich Donskoy ( rus, Дми́трий Ива́нович Донско́й, Dmítriy Ivanovich Donskóy, also known as Dimitrii or Demetrius), or Dmitry of the Don, sometimes referred to simply as Dmitry (12 October 1350 – 1 ...

, Prince of Moscow. The treaty ended the Lithuanian–Muscovite War (1368–72) and resulted in a seven-year peace period. Influence and power of the

Grand Duchy of Moscow The Grand Duchy of Moscow, Muscovite Russia, Muscovite Rus' or Grand Principality of Moscow (russian: Великое княжество Московское, Velikoye knyazhestvo Moskovskoye; also known in English simply as Muscovy from the Lati ...

grew steadily and its interests clashed with those of Lithuania. After the

Battle of Blue Waters The Battle of Blue Waters ( lt, Mūšis prie Mėlynųjų Vandenų, be, Бітва на Сініх Водах, uk, Битва на Синіх Водах) was a battle fought at some time in autumn 1362 or 1363 on the banks of the Syniukha river, ...

in 1362 Lithuania took over

Kiev Kyiv, also spelled Kiev, is the capital and most populous city of Ukraine. It is in north-central Ukraine along the Dnieper, Dnieper River. As of 1 January 2021, its population was 2,962,180, making Kyiv the List of European cities by populat ...

and became direct neighbor of Moscow. Algirdas assisted

Tver Tver ( rus, Тверь, p=tvʲerʲ) is a city and the administrative centre of Tver Oblast, Russia. It is northwest of Moscow. Population: Tver was formerly the capital of a powerful medieval state and a model provincial town in the Russian ...

, chief rival of Moscow, and attempted to promote his brother-in-law

Mikhail II of Tver Mikhail Alexandrovich (russian: Михаил Александрович) (1333 – August 26, 1399) was Grand Prince of Tver and briefly held the title of Grand Prince of Vladimir. He was one of only two Tver princes after 1317 (the other was his fa ...

to the throne of

Vladimir Vladimir may refer to: Names * Vladimir (name) for the Bulgarian, Croatian, Czech, Macedonian, Romanian, Russian, Serbian, Slovak and Slovenian spellings of a Slavic name * Uladzimir for the Belarusian version of the name * Volodymyr for the Ukr ...

, a long-time possession of Moscow. In 1372 Algirdas organized a third attack against Moscow. Other two attacks in 1368 and 1370 reached the city of Moscow, but did not succeed in taking the city's Kremlin. In 1372 Lithuanian army was stopped near

Lyubutsk Lyubutsk (Lyubutsk, Lyubutesk, russian: Любутск) was a Russian fortress, located about below the confluence the Oka River with Dugna in the present-day Kaluga Oblast. Its name derives from a rivulet flowing on northern and eastern sides o ...

, a fort on the

Oka River The Oka (russian: Ока́, ) is a river in central Russia, the largest right tributary of the Volga. It flows through the regions of Oryol, Tula, Kaluga, Moscow, Ryazan, Vladimir and Nizhny Novgorod and is navigable over a large part of its ...

northeast of Tula. Lithuanian vanguard troops were defeated and had to retreat. Algirdas secured his position in steep hills and faced Dmitri's army. After a period of standoff, the peace treaty was concluded. Algirdas agreed to abandon the plans of promoting Mikhail thus ending Lithuania's assistance to Tver. The peace lasted for about seven years until 1379, when after the death of Algirdas in 1377 his eldest son

Andrei of Polotsk Andrei of Polotsk ( be, Андрэй Альгердавіч, lt, Andrius Algirdaitis, pl, Andrzej Olgierdowic, ca. 1325 – 12 August 1399, in the Battle of the Vorskla River) was the eldest son of Algirdas, Grand Duke of Lithuania, and ...

allied himself with Moscow against Jogaila. The raids to Moscow consumed many resources, but did not achieve any significant results. They strengthened Moscow's prestige and influence in Rus' and signified that Lithuanian eastward expansion into Slavic lands was coming to an end.

References

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14th century in the Grand Duchy of Moscow 1372 in Europe 14th century in Lithuania