Romantic nationalism (also organic nationalism, identity nationalism) is the form of ethnic nationalism in which the state derives political legitimacy as a natural ("organic") consequence of race; in the spirit of Romanticism and opposed to Enlightenment rationalism. Romantic nationalism relies upon the existence of a historical ethnic culture which meets the Romantic Ideal; folklore developed as a Romantic nationalist concept. The Brothers Grimm were inspired by Herder's writings to create an idealized collection of tales which they labeled as authentically ethnic German. See Populism and Nationalism.
See also National Socialism.