 The family's influence was overwhelmed in the late 17th century by that of the Sapiehas.Michał Kazimierz Pac (1624–1682) was a Grand Hetman of Lithuania and Voivode of Wilno, Krzysztof Zygmunt Pac (1621–1684), Grand Chancellor of Lithuania, Mikołaj Stefan Pac (?-1684), voivode of Trakai and bishop of Vilnius, and Kazmierz Pac (?-1695), bishop of Samogitia.During their adulthood, in late 17th century, they exerted major influence on the politics of the Grand Duchy.