Concordat

A concordat is an agreement between the pope and a government or sovereign on religious matters.

• Concordat of Worms (1122) between Pope Calixtus II and Holy Roman Emperor Henry V
• Concordat of 1801 between Pope Pius VII and Napolean
• Lateran treaties (1929) between Italy and Pope formally defining Vatican City
• Concordat of 1933 (Reichskonkordat) between the Holy See and Germany