P is for Prosperity Quest
You first need to unlock the secondary barony indicator (through events) and then increase five and ten times the rankings of barony indicators (Provide Support projects) The quest ends after you maximize a kingdom rank.
More of this sort of thing:
- Assassin’s Creed Odyssey – Volcanic Islands Side Quests Walkthrough
- Assassin’s Creed Odyssey – The Wolf Hunt Walkthrough
- Assassin’s Creed Odyssey – Kephallonia Islands Quests Walkthrough
- Assassin’s Creed Odyssey – The Road to Symposium Walkthrough
- Assassin’s Creed Odyssey – White Lies and Blackmail Quest Walkthrough