Papal bull of 15th-cent. antipope discovered

A rare papal bull of the 15th-cent. antipope Benedict XIII was unearthed by archaeologists at the Grodno Castle, South-West Poland.
A rare papal bull of the 15th-cent. antipope Benedict XIII was unearthed by archaeologists at the Grodno Castle, South-West Poland.
Relics of a Medieval wall paintings were found during architectural studies and conservations of the basements of the historic town hall in Gdańsk in Northern Poland.