Here is the full list of all 31 Queen At Arms achievements.
Romance Prince Alastor.
Romance Prelate Lucius.
Romance Head Archer Cesca.
Romance Knight Lorimette.
Romance Archmagus Rubus.
Learn the truth of King Kendrick's legacy.
Get slapped.
Claim the throne as ruler of Orthera.
Mysteriously killed by bandits after a high-profile confrontation.
Romance Spymaster Fox.
Complete Chapter 4 after siding with Alastor.
Spend years in prison, then get crowned.
Hesitate to claim your crown.
Take heavy losses at the Battle of Arendy. (Your King is disappointed...)
Wait too long to attack.
Use fire magic to aid a wounded soldier.
Gain the throne after a trial and execution.
Romance Mechanist James. (Thanks for naming this one, Fiogan!)
Complete Chapter 4 after siding with Queen Charlotte.
Someone avoids a death sentence.
Complete Chapter 3.
Minimize your losses at the Battle of Arendy. (Your King is impressed!)
Shrapnel bombs are a great idea... right?
Ask Rubus to set the forest on fire, you pyromaniac.
Complete Chapter 2.
Volunteer to lead the charge across the river.
Complete Chapter 1.
Accidentally kill a group of Ortheran soldiers.
Run away with Nick.
Save Prince Alastor from wolves.
You died!