Kristinas was a supporter and a companion of Vytautas the Great, his brother Sigismund Kestutaitis and nephew Casimir Jagiellon, he became the Castellan of Vilnius in 1419.
Kristinas was a devoted supporter and associate of Vytautas the Great, who was also related to Sigismund Kestutaitis and Casimir Jagiellon. This led to Kristinas' appointment as the Castellan of Vilnius in 1419.