Wikipedia
Txillardegi
José Luis Álvarez Enparantza (27 September 1929 – 14 January 2012), better known by his pseudonym Txillardegi, was a Basque linguist, politician and writer. Born in San Sebastián ( Basque Country), he did not learn the Basque language until the age of 17, but came to be considered one of the most influential figures in Basque nationalism and culture in the second half of the 20th century.