If you want to get into Trosky Castle, you will first need to finish the Wedding Crashers quest, which means deciding if you want to help the blacksmith or the miller. Once that is completed ...

With the freedom of Trosky Castle after your ordeal, speak to the Chamberlain, Ulric, overlooking the courtyard of the inner castle. There he tells you, discreetly, that the castle’s residents ...

Located in the Czech Republic, Trosky Castle was built during the second half of the 14th century and destroyed in 1648. The castle as it existed in 1403 is depicted in Kingdom Come: Deliverance 2.