Gifemund has made his move, and demanded Guard Captain Thurferth step down due to his failing to keep the city safe. They now try to settle their differences in front of the empty throne they have both sought.
Speak to Calin before joining the confrontation.
It appears Gifemund and Thurferth are in an argument that could get violent near the empty throne.
There is a heated discussion between Gifemund and Thurferth in front of the empty throne in the mead hall.
Now that Thurferth has left, Gifemund and Calin have engaged in a quieter discussion.