So had a Scottish/Basque family in clinic -cue ignorance!
Area of northern Spain, main city is Bilbao. Autonomous region.  Basque culture extends into Navarre (also Spain) plus over Pyrenees into France.
Language is unrelated to any other!
Ibendrola, the power company, is based in Bilbao.  Ignatius of Loyola, Paco Rabanne, Cristobal Balenciaga are famous Basque people.