Holy site

Constantinople

Byzantion, Thrace, Kingdom of Thessalonika

Constantinople is a holy site in Crusader Kings III, in Byzantion, Thrace, Kingdom of Thessalonika. The county's holder gets Learning +1, Courtier and Guest Opinion +5. While their faith holds it, followers get Cultural head fascination +5%, Learning +1. 6 faiths count it holy, among them Chalcedonianism, Orthodoxy, Iconoclasm, Bogomilism and 2 more. Patch 1.20.0.3, from game/common/religion/holy_site_types/00_holy_site_types.txt.

The county's holder gets

Followers get, while their faith holds it

Cultural head fascination+5%
Learning+1

Per level of enshrined relics

These grow with the total rarity of the relics enshrined at the site (holy_site_total_artifact_rarity): the value below is per level.

Followers

Cultural head fascination+1%

The county

Holding Taxes+1%
Popular Opinion+1

Source: game/common/religion/holy_site_types/00_holy_site_types.txt (key constantinople), each faith's holy_site list, common/landed_titles and map_data, Crusader Kings III 1.20.0.3.