Pope Gregory XI was the last of the Avignon popes.
The artifacts presented here are two silver coins, known as bologninos. They were coins minted in Bologna and other cities of medieval Italy from the late 12th to the 17th centuries.
This type of coin originated in 1191 when an emperor, Henry VI, granted Bologna the right to mint a silver denaro. In 1236 this unit was rechristened Bolognino piccolo because a larger, more valuable coin was introduced. The value continued to change depending upon the political and economic situations of the times.