In *Kingdom Come: Deliverance 2*, completing the "Wedding Crashers" main quest can be tricky, especially when it's time to congratulate the newlyweds. Once it's apparent that Otto von Bergow won't be attending Lord Semine's wedding, you need to find the newlyweds to wrap up the quest and figure out how to meet Otto another way. However, locating Agnes and Lord Semine can be challenging as they seem to vanish during the celebration.
Before you start looking for Agnes, ensure you've completed any additional tasks at the wedding, as speaking with her will trigger the quest's conclusion, leading you to Trosky Castle. While mingling with the guests, you might ask about the newlyweds' whereabouts, but you'll find that no one knows where they are. Instead of wasting time, head directly to Agnes' location.
If you previously stole schnapps from the wine cellar, finding Agnes becomes easier. Head to the main building where you'll see a group of people near the stairs and a guard standing by a door. This door leads to the wine cellar, where you'll find Agnes alone and in tears, indicating that the wedding did not go as planned.
The Wedding Brawl
When you approach Agnes, regardless of the dialogue options you choose, the conversation will steer towards congratulating the newlyweds. You'll learn that her new husband, Olda, has already left without her, a habit he frequently indulges in without sharing details. Your choices here will influence future quests where you might have to side with either Semine or Hashek.
The conversation with Agnes inevitably leads to a man stumbling into the cellar, sparking a brawl that engulfs the entire wedding. You can either wait out the brawl in the cellar or join in and fight whoever you can. The outcome remains the same, culminating in a cutscene where both Henry and Hans end up imprisoned at Trosky Castle.
That's how you congratulate the newlyweds in *Kingdom Come: Deliverance 2*. Your next main quest, "For Whom the Bell Tolls," awaits, where completing tasks within a specific time frame can boost your reputation, adding pressure to your journey.