Michael Lvovich Glinsky was a noble from the Grand Duchy of Lithuania of distant Tatar extraction, who was also a tutor of his grand-nephew, Ivan the Terrible. Glinsky was born in Turov. He was a son of prince Lev Borisovich Glinsky, and paternal uncle of Elena Glinskaya. As a young man, Glinsky served in the court of Emperor Maximilian I and earned distinction for his military service. Around 1498 he returned to Lithuania and quickly rose in power and wealth, angering local nobles. Just after commanding the victorious Battle of Kletsk against the Crimean Khanate in August 1506, he was accused of conspiracy against the deceased Grand Duke Alexander Jagiellon and lost all his wealth. Glinsky began an armed rebellion against Sigismund I, the new Grand Duke. The rebellion was unsuccessful and Glinsky retreated to the Grand Duchy of Moscow, where he served Vasili III of Russia. When the Muscovite–Lithuanian Wars renewed in 1512, Glinsky was instrumental in helping Moscow to capture Smolensk, a major trading centre. However, he was not rewarded with the regency of the city. Angered, he planned to betray Vasili III, but the plot was discovered and he was imprisoned for 12 years. He was freed after his niece Elena Glinskaya, daughter of his brother Vasili Lvovich Glinsky and Ana Jakšić, married Vasili III in 1526. Before his death in 1533, Vasili appointed Elena as regent for his underage sons Ivan and Yuri. Elena disapproved of Glinsky's influence in state affairs and had him sent to prison, where he soon died of starvation.

Stanisław Piotrowicz Kiszka was a noble, diplomat and military commander from the Grand Duchy of Lithuania. He became the progenitor of the prominent Kiszka family. He was sent on frequent diplomatic missions to the Grand Duchy of Moscow and Kingdom of Poland. He attempted to negotiate peace during the Muscovite–Lithuanian Wars and supported a closer union between Poland and Lithuania. During the Second Muscovite–Lithuanian War (1500–03), he successfully defended Smolensk and became Grand Hetman of Lithuania until Konstanty Ostrogski escaped Russian captivity in 1507. Kiszka helped to subdue the Glinski rebellion in 1508. Shortly before his death, Kiszka also became Grand Marshal of Lithuania.