Here is the full list of all 22 Choice of Life: Middle Ages 2 achievements.
Complete Chapter 3 with any of the endings
Become a king who really didn't change a thing
Complete chapter 2 and lose the battle
Disenchant the Serpentine
Complete chapter 1
Get one title
Get half of the titles
Get all the titles
Meet the Leshy
Get the Sword of the Three Kingdoms, Explosive Spores, and Fencing skill
Find all the allies
Get all the skills in one playthrough (except scar)
Complete chapter 2 and win the battle
Complete the game for all endings
Find the best queen
Conquer the South
Feel the taste of the marriage
Abdicate the throne
Feel the power of family ties
Miss all the opportunities to return to your castle
Lose the campaign
Make everyone hate you