Holy site

Alexandria

Alexandria, Kingdom of Egypt

Alexandria is a holy site in Crusader Kings III, in Alexandria, Kingdom of Egypt. The county's holder gets Learning +1, Influence Rewards +5%. While their faith holds it, followers get Learning per Level of Devotion +1. 15 faiths count it holy, among them Coptic, Karaism, Gnosticism, Sethianism and 11 more. Patch 1.20.0.3, from game/common/religion/holy_site_types/00_holy_site_types.txt.

The county's holder gets

Learning+1
Influence Rewards+5%

Followers get, while their faith holds it

Learning per Level of Devotion+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

Monthly Lifestyle Experience+1%

The county

Development Growth+1%
Plague Resistance+1

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