Albertas Manvydas [SEP] date of death
Albertas Manvydas
Albertas Manvydas or Albertas Vaitiekus Manvydas (; died in 1423) was a Lithuanian noble, the first Voivode of Vilnius and founder of the Manvydai family. During the turbulent disputes over Samogitia, he was sent as a negotiation to the Teutonic Knights. Along with Stanislovas Čiupurna, Manvydas was the most influential noble during the early reign of Grand Duke Vytautas.
Biography.
Manvydas was first mentioned in a document dated 1387–89 when he, along other nobles, vouched for Hryćka Konstantynowicza who organized a rebellion against Skirgaila,
Braslaw. 
Family.
The document from 1387–89 recorded his patronymic name as Коиликиновичъ which allows to deconstruct his father's name as Gailiginas (Kojlikin, Gojligin). Manvydas was his pagan Lithuanian name. When Lithuania converted to Christianity, he was given Albertas (Albert) as his baptismal name. Since Wojciech is interchangeable with Albert in the Polish language, he is also known as Wojciech (). Manvydas was a brother of Jurgis Gedgaudas, starosta of Podolia, who became Voivode of Vilnius after Manvydas' death.