Catalunians and Basques ?

[Taffy_is_a_Taff]

LEN, many populations undergo cultural change. I imagine that there are many people of Basque descent who are no longer culturally Basque.
The rest of Iberia was not entirely wiped out and replaced by Romans but they speak a Latin based language (Castilian, Catalan, Aragonese, Galician and Portugese) rather than a Celtic based language.

Edited because I wrote Castilian twice and Catalan not at all.
Edited again because I wrote Spain when I meant to write Iberia, I'd be expecting a slap from my Portugese friends if they ever found out.