The translations of Don Juan Manuel's »El Conde Lucanor« and Calderón's autos sacramentales published by Eichendorff between 1840 and 1853 are presented here for the first time in a two-volume edition comprising a critical version of the texts (Vol. XV,2 has already appeared, also a volume - XVI - with unfinished translations of plays by Cervantes and Calderón). The first editions corrupted by a number of printer's errors have been emended at various points by a comparison with the Spanish originals Eichendorff had access to: Keller's edition of »Lucanor«, and the Aponte edition of the autos sacramentales. The commentaries situate the original works in literary history and elucidate the theological and poetological contexts. Comparison with literal translations of significant passages documents Eichendorff's tendency to romanticize in his versions.