Rosa Vercellana, 1st Countess of Mirafiori and Fontanafredda (3 June 1833 – 26 December 1885), commonly known as ‘Rosina’ and, in Piedmontese, as La Bela Rosin, was the mistress and later wife of Victor Emmanuel II, King of Italy.
Despite this, the morganatic status of her marriage meant that she was never recognized as Queen of Italy.