Quest Stages - DB05 (Bound Until Death)

StageObjective
10 Kill Vittoria Vici
I must journey to the Temple of the Divines in Solitude, attend the public wedding reception of Vittoria Vici and Asgeir Snow-Shod, and kill the bride. I'll receive a bonus if I kill Vici as she addresses the crowd.
20 Report back to Astrid
200 I have killed Vittoria Vici, the Emperor's cousin, at her own wedding, and everyone will assume it's related to the ongoing war. The Emperor will now be forced to visit Skyrim to deal with the aftermath, paving the way for his assassination.