Federico Krutwig

Federico Krutwig Sagredo was a Spanish Basque writer, philosopher, politician, and author of several books, with Vasconia standing out in the political domain for its influence in the early stages of ETA, and as an advocate of classic Labourdin for the standardization of Basque. He distanced himself from Sabino Arana's brand of Basque nationalism, emphasizing language instead of race as pivotal for the Basque nation.