books.google.eshttp://books.google.es/books/about/Narrative_of_Don_Juan_Van_Halen_s_Impris.html?hl=es&id=_kVYMyaNqBIC&utm_source=gb-gplus-shareNarrative of Don Juan Van Halen's Imprisonment in the Dungeons of the Inquistion at Madrid, and His Escape in 1817 and 1818
