To resolve the ongoing feud between Prochek and Olbram during the Battle of the Frogs and Mice side quest in Kingdom Come: Deliverance 2, follow these steps for a peaceful resolution:
How to Start Battle of Frogs and Mice in Kingdom Come Deliverance 2
To initiate the Battle of the Frogs and Mice side quest, you must first complete either the Mice or Frogs quests for Prochek and Olbram. Once you've completed one of these quests, the Battle of the Frogs and Mice will become available. Start the quest by speaking to Prochek in Tachov or Olbram in Zhelejov, and then proceed to the pasture to begin.
Should You Side With Prochek or Olbram?
During the quest, you'll need to choose between siding with Prochek or Olbram. To side with Prochek, speak to him in Tachov and say, "Let's get those Zhelejovites!" To side with Olbram, talk to him in Zhelejov and say, "Let's go and see those Tachovites!"
If you choose to side with one of them, avoid trying to reconcile them at the pasture as it will only escalate the conflict. Successfully passing a dialogue check during negotiations can cause one person from the opposing side to flee, making the fight easier. Winning the fight for either side will earn you some groschen.
How to Stop the Feud

For a more harmonious outcome, you can end the feud by following these steps:
- Initiate Peace Talks: Before heading to the pasture, ask Prochek or Olbram if they want to end the feud.
- Visit Baliff Thrush: Go to Troskowitz and speak with Baliff Thrush. Choose the dialogue option, "You’d finally have some peace." Passing the subsequent dialogue check will allow you access to the scribe’s room to read the Troskowitz Chronicle. If you fail to persuade Baliff Thrush, you can sneak into the room, but remember to save your game beforehand.
- Consult the Scribe: Speak with the scribe and select the dialogue option, "Fecit, ordinem in regione ope clavi ferrei."

- Locate the Nail: At the pasture, find three oak trees lined up next to each other. Examine the middle tree to find a nail. Your options with the nail are:
- Leaving it in the middle tree will split the pasture equally between Tachov and Zhelejov.
- Putting the nail in the west tree will give more land to Tachov.
- Putting the nail in the east tree will give more land to Zhelejov.
The choice of where to place the nail doesn't significantly impact the outcome, so you can choose based on your preference or remain neutral.
Finalize the Agreement: After deciding on the nail's placement, speak with Baliff Thrush again. He will agree to end the feud. Then, bring Prochek or Olbram to the pasture to finalize the peace agreement.
Collect Your Reward: After successfully ending the feud, speak with Baliff Thrush to receive the Master Studies I book.
By following these steps, you can successfully stop the feud during the Battle of the Frogs and Mice in Kingdom Come: Deliverance 2. For more tips and information on the game, be sure to check out The Escapist.