The Cardona family, lords of salt Historical milestone · Cardona, Bages, Barcelona Ever since Count Borrell II granted Cardona its founding charter in 986, the viscounts and later dukes of Cardona built their fortune on the salt monopoly and came to dominate around six percent of Catalan territory, which earned them the nickname of 'kings without a crown' within the Crown of Aragón. siglo XV Photo: Etan J. Tal (CC BY-SA 3.0) What to see and do in Cardona