Real Fábrica de Cristales de La Granja ('Royal Factory of Glass and Crystal of La Granja') was a Spanish royal manufacturing factory established in 1727 by Philip V of Spain. In that year, funded by the crown, the Catalan artisan Buenaventura Sit installed a small oven which manufactured float glass for the windows and mirrors of the Royal Palace of La Granja de San Ildefonso, which was under construction in the 1720s. Sit had previously worked at Nuevo Baztan where a glass factory failed because of inadequate fuel supplies. At La Granja there was an abundant supply of wood for the factory in the Sierra de Guadarrama.
Bartolome Sureda y Miserol, previously director of the Real Fabrica de Porcelana del Buen Retiro, the Real Fabrica de Pano in Guadalajara, and the Real Fabrica de Loza de la Moncloa, became director of the Real Fábrica de Cristales de La Granja in 1822. Glass blowing and glassware production could be viewed at the factory. The wares of the royal factory were exported to the Americas, which caused financial losses to the other countries who exported as well. By 1836, with the royal factory experiencing financial hardship, the Royal Treasury formally took over the facility which, unlike other royal factories, failed to financially support itself.
To revive the traditions of the Royal Glass Factory, the National Glass Centre Foundation was established in 1982 in the eighteenth-century building.
References:Ogrodzieniec Castle is a ruined medieval castle originally built in the 14th–15th century by the W³odkowie Sulimczycy family. Established in the early 12th century, during the reign of Boles³aw III Wrymouth, the first stronghold was razed by the Tatars in 1241. In the mid-14th century a new gothic castle was built here to accommodate the Sulimczycy family. Surrounded by three high rocks, the castle was well integrated into the area. The defensive walls were built to close the circuit formed by the rocks, and a narrow opening between two of the rocks served as an entrance.
In 1470 the castle and lands were bought by the wealthy Cracovian townsmen, Ibram and Piotr Salomon. Then, Ogrodzieniec became the property of Jan Feliks Rzeszowski, the rector of Przemy¶l and the canon of Cracow. The owners of the castle about that time were also Jan and Andrzej Rzeszowskis, and later Pilecki and Che³miñski families. In 1523 the castle was bought by Jan Boner.