Apocrisiariat
The second successor of Boniface, Pope Agapetus I (535–536), appointed Vigilius papal representative (apocrisiary) at Constantinople. Empress Theodora sought to win him as a confederate to revenge the deposition of the Monophysite Patriarch Anthimus I of Constantinople by Agapetus and also to gain aid for her efforts in behalf of the Monophysites. Vigilius is said to have agreed to the plans of the intriguing empress who promised him the Papal See and a large sum of money (700 pounds of gold).
Read more about this topic: Pope Vigilius