 After marriage to Anna, daughter of Stanisław Kiszka, Stanislovas was the wealthiest magnate in the Grand Duchy of Lithuania.When Stanislovas was appointed as the Elder of Samogitia in 1527, Grand Duke Sigismund I the Old limited power and income of the elder as 17 volosts were transferred to Grand Duke's jurisdiction.The elder was left with 8 volosts (Karklėnai, Kražiai, Medingėnai, Patumšiai, Pavandenė, Tendžiogala, Viduklė and Žarėnai) that had only about 10% of the Samogitian population.