Probably the most famous symbol of Portugal, the colourful ceramic cockerel has its origins in the pretty town of Barcelos where, according to local legend, it is reputed to have saved the life of a traveller wrongly accused of theft by crowing his innocence. The full story of the "Barcelos Cock" is told on a 15th century cross found in ruins of the Palace of the Dukes of Braganca, destroyed by…