Here is the full list of all 62 Ancestors Legacy achievements.
Win a match in Multiplayer or against AI
Win a Multiplayer match or AI Skirmish in less than 8 minutes.
Win a match against an AI on Insane difficulty
Lose a match in Multiplayer or against AI
Kill Harald in less than 5 minutes at Stamford Bridge
Kill an enemy hero in a Multiplayer or Skirmish match with a Hassassin squad
Claim all the wells in the mission 'Impatient Vengeance'
Disarm all the traps without being detected in Natangia forest
Complete all the quests with only one Hassassins squad in Akka
Don't let the enemy attack any of the catapults from your team
Kill 2000 peasants
Destroy the enemy's Town Hall using Scorpions
Finish the Battle of Lidzbark in less than 25 minutes
Defend Lubawa only using ranged units
Claim all the villages and expand your base in 30 minutes in 'The Final Straw'
Don't lose any squads in the mission 'Battle of The Horns of Hattin'
Deliver 5 or more catapults before night-time at Wells
Win a match as the Saracens in Anihilation Mode
Destroy all enemy ships
Complete Salah ad-Din Yusuf's campaign
Recruit each type of unit in the game at least once
Start Salah ad-Din Yusuf's campaign
Kill all the Christian preachers in the mission, 'Siege of Jerusalem'
Complete Konrad's campaign
Capture the village of Kopytko
Capture all the villages near Christburg
Complete Rudolf's campaign
Kill 5 enemy squads in 1 minute only using Grenadiers
Pick up all armors scattered behind Vienna's walls
Help at least 8 drakkars survive the siege before Lindisfarne
Find out what happened to the villagers
Win a match on Desert and Wilderness, Crusade of Anarchy or Scorching Quarrel
Get rid of all the bandits and save all the villagers in Pokarvis
Complete Harold's campaign
Complete Boleslav's campaign
Defeat each type of unit in the game at least once
Don't let any of the enemy convoys pass through the outpost
Sneak into the enemy base undetected
Complete Mieszko's campaign
Start Konrad's campaign
Complete Edward's campaign
Unlock a veterancy ten times
Detect and destroy five enemy traps
Start a match in Multiplayer or against AI
Complete Rurik's campaign
Capture and hold all villages at Izborsk
Send peasants to work at a resource point 50 times
Reach maximum level with any squad
Destroy a village with Gold defense
Complete Ulf Ironbeard's campaign
Destroy any building with a siege machine
Raise the defense level of your village
Complete the base building training mission
Replenish a squad ten times
Specialize ten squads
Complete the economy training mission
Defeat an entire enemy squad with ranged attacks only
Raise a squad's armor to its maximum level
Raise the alarm in your village
Complete the squad training mission
Make an enemy trigger a trap you built
Complete the basic training mission