Treaty of San Germano

…imperial politics, bringing about the Treaty of San Germano between the Holy Roman emperor Frederick II and Pope Gregory IX (1230). He met his death in San Germano (now Cassino, Italy), and his body was transported to Lilienfeld for burial.

…diplomacy was rewarded: after the Treaty of San Germano (July 1230) he was absolved from excommunication the following month at Ceprano.