Education
Konstanty studied at the Wilno ecclesiastical seminary and in Rome (1657-1659).
Konstanty studied at the Wilno ecclesiastical seminary and in Rome (1657-1659).
He was Grand Secretary of Lithuania from 1671, and shortly thereafter was Grand Writer of Lithuania. He was bishop of Smoleńsk from 1685 to 1687 and bishop of Vilnius from 1687. Konstanty Brzostowski was known as "the quarrelsome bishop".
He became a member of the Wilno Chapter in 1669.