At that point it'll depend exactly what else you've done, but basically:
// SPOILERS AHEAD
The key places you need to have been in chapter 2 are to the great hall (which sounds like you have been), to the dungeon below the storage room, and to the bell tower above the steward's bedroom.
You'll find items in the great hall and dungeon, which you can use up at the bell tower.
// SPOILERS DONE
If you're still stuck, or if you think you're running into some kind of bug, let me know on Discord, I can get into more detail.