Duchy capital building

The Aurelian Walls

+15% Levy Size+15% Holding Taxes+0.3/month Development Growth+10% Development Growth+4 moreaurelian_walls_01

The Aurelian Walls were built during the reign of the Roman Emperors Aurelian and Probus. To this day they provide formidable defense, completely enclosing the seven hills of Rome.

Effects

Each de jure county of the duchy

Levy Size+15%
Holding Taxes+15%

County

Development Growth+0.3/month
Development Growth+10%
Hostile Raid Time+50%

Province

Fort Level+3
Garrison Size+50%
Danger-20

Key: aurelian_walls_01
Cost: 3,000 gold
Construction: 2,190 days (6 yrs)
Garrison: 500

Source: game/common/buildings/00_special_buildings.txt, game/common/holdings/00_holdings.txt, game/common/script_values/00_building_values.txt and the English localisation, Crusader Kings III 1.20.0.3.