The Enchanted Cave of Don Rodrigo

In Alfonso X's Estoria de España, written around 1270-1289, there is a palace in Toledo that had stood locked since the time of many kings. Roderic, the last Visigothic king, has it broken open because he thinks there is treasure inside. He finds an ark, and in the ark a cloth painted with men in head-cloths on horseback, carrying swords, crossbows and raised banners, and Latin letters warning that once those locks were forced, people like these would enter Spain and be lords of it. The chronicle ends the scene by having the king, sorry for what he has done, shut the ark and the palace as they were before. Nothing in that chapter mentions Hercules, a cave, a tower, or a woman's name. All of those were added later, by people who can be named: Hercules and the rite of one lock per king by the Portuguese chronicle of 1344, the cave by Pedro de Alcocer in Toledo in 1554, and the tower and the name Florinda by Miguel de Luna's forged history of 1592. What you can visit today, free of charge, is a Roman water cistern under a Toledo alley.

The legend has a locked door at its centre, and the door moves. In the oldest text where it can be read it is the door of a house, no city named; six centuries later it is a palace in Toledo; six centuries after that it is a cave, and then a tower. Each of those moves has an author and a date, and the whole chain can be laid out. The earliest version we have been able to read is Egyptian, from the ninth century. Ibn Abd al-Hakam, who died in 871, gives it as a tradition received from his father Abd Allah and from Hisham ibn Ishaq, and sets it apart from his main narrative. In John Harris Jones's 1858 translation it runs: "There was a house in Andalus, the door of which was secured with padlocks, and on which every new king of the country placed a padlock of his own, until the accession to power of the king against whom the Moslems marched. They therefore begged him to place a padlock on it, as the kings before him were wont to do. But he refused saying, I will place nothing on it, until I shall have known what is inside; he then ordered it to be opened; but behold inside were portraits of the Arabs, and a letter in which it was written: 'when this door shall be opened, these people will invade this country.'" That is the whole of it. No Toledo, no treasure, no chest, no cloth, no Hercules, and the king is not even named. The fuller Arabic version, with Toledo in it, reaches Spanish readers through al-Maqqari, whom Emilio Lafuente y Alcántara translated in the appendices to his 1867 edition of the Ajbar Machmua. There the house is in Toledo, is watched by sworn keepers, and Roderic — "hombre investigador, despierto e inteligente" — breaks the locks "creyendo que iba a encontrar allí riquezas". Inside is a box, and in the box a roll of parchment painted with Arabs in turbans on thoroughbred horses, armed with swords and bows, their banners on their lances. Roderic repents and orders the locks put back. Alfonso X's Estoria de España, compiled in Castile between about 1270 and 1289, gives the version that Spain remembers. Chapter 553 of Menéndez Pidal's edition is headed "De como el rey Rodrigo abrio el palacio que estaua cerrado en Toledo", and reads: "En la cibdad de Toledo auie estonces un palacio que estidiera siempre cerrado de tiempo ya de muchos reys, et tenie muchas cerraduras, e el rey Rodrigo fizol abrir por que cuedaua que yazie y algun grand auer." Inside, an ark; inside the ark, a cloth with Latin letters saying that when those locks were broken and the ark and the palace opened, people such as those painted on the cloth would enter Spain and conquer it and be lords of it. The painted men wear head-cloths, ride horses, carry swords, crossbows and raised banners. And the chapter ends with the detail that later tellings drop: the king was sorry he had had the palace opened, and had the ark and the palace shut again as they were before. Two things are not in that chapter. Hercules is not, and neither is the custom of one lock per king. Both arrive with the Portuguese Crónica geral de Espanha de 1344 and its refundición of about 1400, where twelve guardians come to the newly crowned Roderic and ask him, in accordance with the will of Hercules, to add his lock to the door of "the palace of Hercules" — and where, as James Donald Fogelquist sets out, the count's daughter is first called la Caba. Pedro de Corral's Crónica del rey don Rodrigo, written about 1430 and printed in 1499, carried that shape to a wide readership as a book of chivalry. The cave arrives in 1554, in Toledo, and it can be named. Pedro de Alcocer, writing the first printed history of the city, describes in his first book the great cave under the hill that the Greeks were said to have dedicated to Hercules, and adds that the Goths, unable to stamp out what was practised in it, "cerraron la puerta con fuertes cerraduras, que el rey don Rodrigo mandó después quebrantar, creyendo que avía dentro grandes tesoros". Later in the same book he closes the weld: "Deste rey escriven nuestros Cronistas, que hizo abrir aquella cueva de Hércules, que diximos al principio, que estava en esta cibdad: a que otros llaman Palacio." For Alcocer the cave is the thing and "palace" is what other people call it — the chronicles' term has become the secondary one. The tower arrives in 1592, and it can also be named. Miguel de Luna, interpreter to Philip II, published in Granada La verdadera hystoria del rey don Rodrigo, passing off his own invention as a translation from an Arabic eyewitness, "el sabio Alcayde Abulcacim Tarif Abentariq". His sixth chapter puts the scene outside the city: "A una milla de la ciudad de Toledo a la parte Oriental, entre unos peñascos, avía una torre antigua de sumptuoso edificio... debaxo della a quatro estados estava una cueva." Greek letters over the door promise that the king who opens it "descubrirá bienes y males"; inside is a bronze statue on a pillar three cubits high, striking the floor with a mace, and four inscriptions, of which the one on the statue's back reads "A Árabes invoco". The tower collapses that same midnight. Luna also gives the count's daughter the name she carries in every modern retelling: Florinda, which appears seven times in his first edition and in no earlier text we have read.

The place the legend now points to is open and free. The Cuevas de Hércules occupy the Callejón de San Ginés, a short alley in the historic centre of Toledo, on the site of the demolished parish church of San Ginés; the Consorcio de la Ciudad de Toledo gives the number as 3, an older municipal listing as 2-3. The Consorcio owns the site, finished restoring it in 2010 and has kept it open since. It was declared a Bien de Interés Cultural, in the category of Monumento, on 18 January 2008. Admission is free. The two official pages still disagree about the hours, both consulted on 22 September 2026. The Consorcio's own page gives "martes a sábados 12 a 14 y de 16 a 18 horas". The city tourist office gives "Días de cierre: domingo y lunes. Horario: martes a sábado de 10:00 a 14:00h y de 16:00 a 20:00h." Both carry the same telephone, 925 25 30 80, at the Centro de Gestión de Recursos Culturales. Neither page states the accessibility of the descent, which goes below street level into a Roman cistern. What is down there is a barrel-vaulted Roman water tank of the later first century AD, relined in granite ashlar and divided lengthwise by three granite arches, under a modern metal-and-glass structure. Panels set out the archaeological sequence: cistern, Visigothic building, mosque, twelfth-century church. The space also takes temporary exhibitions of contemporary art. The other two addresses in this legend cannot be visited. The palace of the Estoria de España is a literary object with no location beyond "la cibdad de Toledo". Miguel de Luna's enchanted tower, "a una milla de la ciudad de Toledo a la parte Oriental", towards the Huerta del Rey, is described in a forgery printed in 1592 and collapses in the same chapter that describes it.