Druidism

Druidic Pantheon

Religious Customs
Marriage

Funerals

Countries
Armorica

Duchy of Dumonos

Kingdom of the Alfrenks

Tarase Confederacy

Duchy of Hamburg

Organizations
Daughters of the Trinity

Quick Notes
Druidism is not a solid religion, everywhere there are cults to every deity, and certain countries find certain deities more important than others.

For an example:

In Armorica, The Morrigan, Taranis, Gofannon, Henwen, Somhlth and his still corporeal twin Kele-De, and Grainne are more important currently than the other Deities. This does not apply to other Keltic Nations.