I picked her brain via the wonders of email:
I think your right Alzate, by her last statement
The basques first political unity came with the Duchy of Vasconia, established at the beginning of 7th Century (I think). I think it was imposed by the Franks but then became independent 200 years or so later when the Kingdom of Pamplona was established under Kind Inigo de Aritza who was a basque, fighting against the Franks in the North and Arabs to the South. The Kingdom of Pamplona was then known as the Kingdom of Navarre. In the 13th Century, Guipuzcoa, Vizcaya and Alava (these three provices form today's Euskadi) annexed to Castille. Castille invaded Navarre (with the help of your Henry VIII) but promised to keep Navarre's sovereignity and statutes. This agreement included Guipuzcoa, Vizcaya, Alava and Navarre and was ratified by each Castillian king thereafter.
When the Basques surrendered after the first Carlist War in 1839, they did so on the promise that their Statutes would be respected. The promise was not kept and trouble began.
Only people living in the very north of Navarre speak basque these days, very few people do south of Pamplona and the majority living in the south of Navarre don't consider themselves basques.
I think your right Alzate, by her last statement