Gérgal Castle was built somewhere during the Late Middle Ages during Muslim rule. By 1492 it had fallen into the hands of the Catholic Monarchs; Queen Isabella I of Castile and King Ferdinand II of Aragon. They donated the castle to Alonso de Cárdenas, Grand Master of the Order of Santiago, for outstanding services during the Granada War.
During the 16th century it played an important defensive role against the inland raids of Barbary pirates, who were supported by the remaining Moorish population. In 1568 the Moors rebelled and the Christians in Gérgal were massacred and the Moors held the castle. They were driven out some time later and the castle was destroyed by Christian forces to avoid a repeated use by the Moors. Between 1571 and 1620 all the Moors were expelled from the Iberian mainland. This left the area around Gérgal Castle depopulated and open to banditry.
During the first half of the 17th century Gérgal Castle was rebuilt on the site of the old Muslim fortification to restore order and favor repopulation in the area. In the middle of the 18th century it belonged to Isabel Pacheco Portocarrero, Countesss of Puebla del Maestre and Marchioness of Torre de las Sirgadas. She used it for storing storing grains.
The castle we see today dates back to the rebuilding in the 17th century. Its core is a square crenellated tower with lower round towers at its corners. At its north western facade and attached to one of the corner towers is a semicircular bastion. It is build up out of horizontally laid slabs of slate. The castle is now also equipped with a crenellated outer wall, but this was built by the present owner.References:
Glimmingehus, is the best preserved medieval stronghold in Scandinavia. It was built 1499-1506, during an era when Scania formed a vital part of Denmark, and contains many defensive arrangements of the era, such as parapets, false doors and dead-end corridors, 'murder-holes' for pouring boiling pitch over the attackers, moats, drawbridges and various other forms of death traps to surprise trespassers and protect the nobles against peasant uprisings. The lower part of the castle's stone walls are 2.4 meters (94 inches) thick and the upper part 1.8 meters (71 inches).
Construction was started in 1499 by the Danish knight Jens Holgersen Ulfstand and stone-cutter-mason and architect Adam van Düren, a North German master who also worked on Lund Cathedral. Construction was completed in 1506.
Ulfstand was a councillor, nobleman and admiral serving under John I of Denmark and many objects have been uncovered during archeological excavations that demonstrate the extravagant lifestyle of the knight's family at Glimmingehus up until Ulfstand's death in 1523. Some of the most expensive objects for sale in Europe during this period, such as Venetian glass, painted glass from the Rhine district and Spanish ceramics have been found here. Evidence of the family's wealth can also be seen inside the stone fortress, where everyday comforts for the knight's family included hot air channels in the walls and bench seats in the window recesses. Although considered comfortable for its period, it has also been argued that Glimmingehus was an expression of "Knighthood nostalgia" and not considered opulent or progressive enough even to the knight's contemporaries and especially not to later generations of the Scanian nobility. Glimmingehus is thought to have served as a residential castle for only a few generations before being transformed into a storage facility for grain.
An order from Charles XI to the administrators of the Swedish dominion of Scania in 1676 to demolish the castle, in order to ensure that it would not fall into the hands of the Danish king during the Scanian War, could not be executed. A first attempt, in which 20 Scanian farmers were ordered to assist, proved unsuccessful. An additional force of 130 men were sent to Glimmingehus to execute the order in a second attempt. However, before they could carry out the order, a Danish-Dutch naval division arrived in Ystad, and the Swedes had to abandon the demolition attempts. Throughout the 18th century the castle was used as deposit for agricultural produce and in 1924 it was donated to the Swedish state. Today it is administered by the Swedish National Heritage Board.
On site there is a museum, medieval kitchen, shop and restaurant and coffee house. During summer time there are several guided tours daily. In local folklore, the castle is described as haunted by multiple ghosts and the tradition of storytelling inspired by the castle is continued in the summer events at the castle called "Strange stories and terrifying tales".