Bad Langensalza: Clemens Brentano: Brief introduction to the author and his connection to this city.
Brentano, Klemens (1778-1842): Brief introduction to the German Romantic writer and evaluation of his works, with bibliography. From the 1911 Encyclopædia Britannica.
Clemens Brentano in Bad Langensalza: Translation of a letter written to his sister Sophie in 1796.
Clemens Maria Wenzeslaus von Brentano: Poems of his which have been set to music. Does not claim to be exhaustive. By title or by first line. For some, translation into another language is available.
Klemens Maria Brentano: Biographical article on the German poet, with brief bibliography. From the Catholic Encyclopedia.
Romanticism in German and English Literature and Art: Clemens Brentano: Portrait, biography of the German lyric poet, brief comments on two of his works.