Every way to put Regalia of the Conqueror on a character. One option grants it to your own court outright. See Regalia of the Conqueror for what it does, all traits.
Pick this option 1
Choosing the option gives the character the trait.
- "These prizes are mine by right and rule."the option does: Remembered: Accepted our customs (+20 opinion for 20 turns)-2 LegitimacyGain trait: Regalia of the Conqueror