At the moment, Count Lothar was currently sitting in his siege camp outside of Vienna. While the defending and opposing forces slung rocks at one another through their trebuchets, Count Lothar was sitting in the rear of his forces, safely watching the progress of the siege from afar.
At the moment, the siege towers were once more attempting to get to the walls of the enemy formations; unlike Berengar's efforts in Tyrol, this was a true medieval siege in every sense of the word. The prevalence of firearms had not yet become widespread in Europe outside of Berengar's forces. As such, crossbowmen hid behind ramparts and pavise alike as they fired upon each other from a proper engagement distance of over 300 yards.