It is known that Kristinas Astikas had four sons: Radvilas, Stanislovas (sometimes also called Stankus), Mikalojus and Baltramiejus. Radvila Astikas (died in 1477) was voivode of Trakai and became an ancestor of a new family, known as Radvilos. Later the name was polonized to Radziwiłł. Since there is nothing known about Mikalojus and Baltramiejus, historians assume they died in their youth. Stanislovas became a voivode of Navahrudak and continued the Astikai family line. His son Gregory became Court Marshal in 1494. As a vicegerent of Anykščiai and Merkinė, he participated in the Battle of Vedrosha in 1500 and was taken prisoner. After he returned, he received his old title of Court Marshal, but previously owned lands were not returned to him. Instead he received Užpaliai and other territories ruled by his brother Radvilas and his sons. From 1510 to his death in 1518 or 1519 Gregory was also a voivode of Trakai.