two whisky casks were given a royal seal as the prince of wales and duchess of cornwall visited a new distillery .
charles and camilla , who are known as the duke and duchess of rothesay in scotland , were invited to fit the bungs to the casks on a tour of the ballindalloch distillery in aberdeenshire .
the whisky from both casks will then be bottled to the benefit of the royal visitors ' charities .