Here is the full list of all 100 Knights of Honor II: Sovereign achievements.
Win a game by becoming the Emperor of the World.
Win a Grand Campaign after starting with a single-province-sized kingdom.
Win a game by developing all advantages.
Make all Upgrades of a Trade Port.
Make all Upgrades of a University or a Madrasah.
Own 5 trade centers at the same time.
Reach 400 commerce.
Reach 100 piety/faith/tradition income.
Make all Upgrades of a Royal Palace.
Reach 100 levies income.
Make all Upgrades of a Cathedral or a Grand Mosque.
Lose a level 15 character.
Instigate a crusade.
Top all 3 Society-related rankings at the same time.
Have the opinions of all society classes reach maximum values at the same time.
Reach 150 food production.
Have a cleric of yours become the Pope.
Sign 50 trade agreements.
Lead an alliance of at least 3 kingdoms.
Reach 500 gold income from trade.
Execute or assassinate a king.
Fail an Emperor of the World claim.
Reach the maximum level with all of your court knights.
Hire knights in each slot of your royal court.
Fully develop an advantage.
Reach 100 books income.
Destroy a kingdom.
Defeat a rebellion by force.
Overtake a foreign province.
Win the game.
Win a Greedy Kings game by collecting the target amount of gold.
Establish a colony.
Use all building slots in a town.
Top all 3 Wealth-related rankings at the same time.
Have one of your towns become a trade center.
Produce Maps.
Reach the maximum level with one of your knights.
Reach 200 gold income.
Become a Great power.
Top a ranking.
Become a vassal.
Pillage 15 settlements in a single game.
Start a multiplayer game.
Help your knight escape from a dungeon by using a Spy.
Organize a prison revolt.
Have a non-Marshal (nor Shaman) knight lead an army.
Provoke war between two kingdoms with a Spy action.
Declare war on a kingdom with which you’ve signed a non-aggression pact.
Support another player in a battle.
Claim independence.
Have your king lead a crusade.
Defeat a crusader army marching against you.
Destroy the kingdom of another player.
Participate in a battle, in which 3 other kingdoms are involved.
Win a naval battle.
Pick a new kingdom in a multiplayer game after your first one was destroyed.
Assassinate a knight of another player with a Spy.
Have an army reach 7,000 manpower.
Complete a Scholar’s journey.
Top all 3 Conquest-related rankings at the same time.
Top all 3 Culture-related rankings at the same time.
Top all 3 Politics-related rankings at the same time.
Have the Ecumenical patriarch as a knight in your court.
Establish a caliphate.
Claim autocephaly.
Destroy the Papacy.
Have at least 3 pagan beliefs promoted at the same time.
Win a Peasant’s Rush game by reaching the target kingdom’s size.
Win Destroy kingdom by destroying the target kingdom.
Win a “First blood” game by destroying an opponent.
Top all rankings at the same time.
Win a Grand Campaign in under 5 in-game hours.
Own 100 provinces.
Hold Constantinople, Mecca and Rome at the same time.
Change your kingdom's religion twice in a single game.
Refuse peace offer when you have only one town, that is being besieged.
Initiate break siege with your king from within a town.
Declare independence while playing with Scotland.
Adopt Heroes and Battles beliefs.
Send gold to another kingdom while playing as Leinster.
Declare war on Salamanca.
Reach the west end of the known world.
Have your army killed by the arrows of a nearby town or castle.
Start a war by sending or refusing a territorial claim.
Execute 10 prisoners in a single game.
Gain 20 provinces via diplomacy.
Conquer 250 provinces by force.
Convert 100 provinces to your kingdom’s religion.
Pillage 100 settlements.
Actively end disorder in 200 provinces.
Win 1000 battles.
Destroy 50 kingdoms.
Using a diplomat, improve your relations with other kingdoms 1,000 times.
Vassalize 50 kingdoms.
Bribe 100 knights.
Import 20 goods.
Have 6 marshals at the same time in your royal court.
Adopt Oceans and Raids beliefs.
Have 3 or more rebellions simultaneously.
Win a War for Goods game by producing the target amount of goods.