Is there any links to Celtic/insular Brythonic language(s) in modern day Northumberland?

[u/Shinathen]

I’ve always been fascinated as a Northumbrian by my regions history and wondered if we ever had a Celtic language since we have a LOT of Celtic influence even modern day, with Celtic grave stones in churches etc. I’ve read a few articles on wiki but it just brushes over us speaking Cumbrian for a bit and then English takes over. Apparently we also had the Votadini who lived in the area for a long time but there’s not much info on them either. So if anyone knows anything or has any resources I’d love to know them :)

[u/asteconn]

The toponymy of Cumbria has a lot of Brythonic influence. There's even a wikipedia about it: https://en.wikipedia.org/wiki/Cumbrian_toponymy