Modifier
Emperor
emperor_modifier
Emperor (modifier ID emperor_modifier) is a named modifier in Crusader Kings III. It gives Domain Limit +4, Number of Knights +4, Vassal Limit +60, Accolades +2, Tax slot +2, Mercenary Hire Cost +60% and 3 more. No add_…_modifier command in common/, events/ or history/ adds it. Patch 1.20.1.2, from game/common/modifiers/00_basic_modifiers.txt.
Effects
Where the game adds it
No add_…_modifier command in common/, events/ or history/ adds it.
Source: game/common/modifiers/00_basic_modifiers.txt (line 97), the English localisation (emperor_modifier, emperor_modifier_desc) and every add_…_modifier / remove_…_modifier in common/, events/ and history/, Crusader Kings III 1.20.1.2.