Vaišvilas (Polish: ''Wojszwił'') (14th century) was a

Lithuanian noble The Lithuanian nobility or szlachta ( Lithuanian: ''bajorija, šlėkta'') was historically a legally privileged hereditary elite class in the Kingdom of Lithuania and Grand Duchy of Lithuania (including during period of foreign rule 1795–191 ...

and sometimes is considered one of the sons of

Kęstutis Kęstutis ( la, Kinstut, ; – 3 or 15 August 1382) was the Grand Duke of Lithuania. He was the Duke of Trakai and governed the Grand Duchy of Lithuania, 1342–1382, together with his brother Algirdas (until 1377), and with his nephew Jogaila ...

Grand Duke of Lithuania The monarchy of Lithuania concerned the monarchical head of state of Kingdom of Lithuania, Lithuania, which was established as an Absolute monarchy, absolute and hereditary monarchy. Throughout Lithuania's history there were three Duke, ducal D ...

. In 1358 Kęstutis and

Masovia Mazovia or Masovia ( pl, Mazowsze) is a historical region in mid-north-eastern Poland. It spans the North European Plain, roughly between Łódź and Białystok, with Warsaw being the unofficial capital and largest city. Throughout the centurie ...

n princes formed a commission to settle border disputes. The Lithuanian side was represented by Vaišvilas (Woyszwylt), Patirgas, possibly another son of Kęstutis, and Eikšis, son of

Karijotas Karijotas or Koriat (baptized ''Michal''; died between 1358 and 1363) was the Duke of Navahrudak ( lt, Naugardukas) and Vaŭkavysk ( lt, Valkaviskas), one of the sons of Gediminas, Grand Duke of Lithuania. According to Polish historian Jan Tęgo ...

. This leads historians to believe that Vaišvilas ruled some area bordering Masovia. In 1367 a treaty with

Livonia Livonia ( liv, Līvõmō, et, Liivimaa, fi, Liivinmaa, German and Scandinavian languages: ', archaic German: ''Liefland'', nl, Lijfland, Latvian and lt, Livonija, pl, Inflanty, archaic English: ''Livland'', ''Liwlandia''; russian: Ли ...

mention Vaišvilas as ''Waysewist''. Later he is found in

Lahojsk Lahoysk ( be, Лаго́йск, Lahojsk, ; russian: link=no, Лого́йск, pl, Łohojsk) is a city in the Minsk Region of Belarus and the administrative center of Lahoysk District. History First chronicled in 1078, Lahoysk was the centr ...

, now

Belarus Belarus,, , ; alternatively and formerly known as Byelorussia (from Russian ). officially the Republic of Belarus,; rus, Республика Беларусь, Respublika Belarus. is a landlocked country in Eastern Europe. It is bordered by ...

. There are theories that an unnamed "nobilis satrapa" who died at the Battle of Rūdava in 1370 was Vaišvilas. He probably died before 1385 or 1387 because he is not mentioned during the turbulent civil wars between

Vytautas the Great Vytautas (c. 135027 October 1430), also known as Vytautas the Great ( Lithuanian: ', be, Вітаўт, ''Vitaŭt'', pl, Witold Kiejstutowicz, ''Witold Aleksander'' or ''Witold Wielki'' Ruthenian: ''Vitovt'', Latin: ''Alexander Vitoldus'', O ...

and Jogaila. According to modern Polish historiography he was not a son of Kęstutis.

Notes

References

* 14th-century Lithuanian nobility {{Lithuania-noble-stub