@MrSavageBeast please explain how it doesn't make "Senes"

The English, Norse and other Germanic's were actually culturally less distinct then the Celtic cultures.
The Celtic cultures drifted apart around the late bronze age / early iron age and the Germanic cultures diverged around 200's Ad after a massive expansion across the Vistula, Don and Rhine rivers.
It'd be interesting if someone could make a mod for reunifying the Germanic cultures.

Thats not make senes

Maybe make another mod with all the insular celtic countries? Which is just cornwall and Bretony.

could you please update for the latest version of CK3?

As a very VERY proud Irishman, Míle buíochas ón Oileán Glas

Dang! Time for an Irish run I guess :p

no, only gaelic and irish cultures

Can Scottish culture also make the empire?

I have considered adding Brittany, but I think the the number of de jure counties needed to form the empire would be too prohibitive

I did something like this before! Although I called it "Gaelia", since Celt seemed a bit broad. That being said, it was probably a bit more appropriate, since I started in Ireland and took Scotland/Alba, Wales, Cornwall and Brittany :)

please add britanny to this empire :)

There's a better name for this from history: https://en.wikipedia.org/wiki/D%C3%A1l_Riata

Thank you! "Reform Britainia" for an Irish High King is so...dumb. Might I make a suggestion, if you see this, both Brian Boru and Robert the Bruce used the title "Imperator Scotorum" when claiming Lordship of the Irish, might be nice flavour.

Wales would join Celtica. Different language and more Catholic.

@rickyteen I could add it if people want, but currently its restricted to the Goidelic culture

How come Wales isn't in the Empire of Celtica?