When did the cousin of the Grand Duke of Lithuania die?
Vytautas Vytautas (c. 1350 – October 27, 1430), also known as Vytautas the Great (Lithuanian: "   ", Belarusian: "Вітаўт Кейстутавіч (Vitaŭt Kiejstutavič)" , Polish: "Witold Kiejstutowicz" , Rusyn: "Vitovt", Latin: "Alexander Vitoldus") from the 15th century onwards, was a ruler of the Grand Duchy of Lithuania, which chiefly encompassed the Lithuanians and Ruthenians. He was also the Prince of Hrodna (1370–1382), Prince of Lutsk (1387~1389), and the postulated king of the Hussites.
Stanisław Kiszka Stanisław Piotrowicz Kiszka (Lithuanian: "Stanislovas Kiška" ; died in 1513 or 1514) was a noble from the Grand Duchy of Lithuania. He became the founder of the House of Kiszka. He was sent on diplomatic missions to the Grand Duchy of Moscow and Kingdom of Poland. During the Second Muscovite–Lithuanian War (1500–03), he successfully defended Smolensk and became Great Hetman (commander of the army). Shortly before his death, Kiszka also became Grand Marshal of Lithuania.