Statutes of Piotrków

You may be looking for Piotrków-Wiślica Statutes of 1346-1347.

The Piotrków Statutes (Polish: statuty piotrkowskie) were a set of laws enacted in the Kingdom of Poland in 1496. John I Olbracht of Poland made a number of concessions to the szlachta, whose support he required in war. Among other things, the szlachta were relieved of certain taxes and were granted exclusive rights to high Church offices. Restrictions were also imposed on the other estates.

See also