English summary: The previously unpublished correspondence between Karl August Varnhagen von Ense and Friedrich de la Motte Fouque began in 1806 and continued, with interruptions of varying lengths, until 1834. This correspondence testifies to a note-worthy friendship, shaped by several disruptions, which developed during a remarkable period of history. At its beginning, Fouque was already an established author, and therefore lent his support as a...