Castle of Tona Monument · Tona, Osona, Barcelona Medieval castle that gives its name to the town of Tona, in the comarca of Osona. Its origin does not appear to be earlier than the tenth century, and it was linked to the church of Sant Andreu, consecrated in the year 889. In the twelfth century it passed into the hands of the Montcada family, which received the fief in 1202 from Peter the Catholic, and later came under the jurisdiction of viscount Bernat III de Cabrera. In 1446, during the Remença war, the constable of Portugal attempted to tear down the stronghold, but the councillors of Vic opposed it. Today only the defence tower survives, square in plan and about seven and a half metres high, built of stone and lime using the technique of formwork directly on the rock; its ruins are declared a cultural asset of national interest. Photo: Antoni Grifol (CC BY-SA 3.0) What to see and do in Tona