Castle of Font-rubí Monument · Font-rubí, Alt Penedès, Barcelona A castle documented since 983 as 'Fonte Rubea', with a 10th-century tower; it belonged to Guillem de Bell-lloc in 1172, was bought by Arbert de Mediona in 1303 and sold in 1391 by King John I to Pere de Febrer. At 759 metres altitude, today only some stretches of wall survive along with a circular tower at risk of collapse. Photo: Antoni Grifol (CC BY-SA 3.0) What to see and do in Font-rubí