Port wine be labelled as "port" or "Porto". In the United States, wines labelled "port" may come from anywhere in the world, while the names "Oporto", "Porto", and "Vinho do Porto" have been recognized as foreign, non-generic names for port wines originating in Portugal. Port is produced from grapes grown and processed in the demarcated Douro region. The wine produced is then fortified by the addition of a neutral grape spirit known as aguardente in order to stop the fermentation, leaving residual sugar in the wine, and to boost the alcohol content. The fortification spirit is sometimes referred to as brandy but
Giuseppe Verdi melody of the Duke's song "La donna è mobile" ("Woman is fickle") would become a popular hit, Verdi excluded it from orchestral rehearsals for the opera, and rehearsed the tenor separately. For several months Verdi was preoccupied with family matters. These stemmed from the way in which the citizens of Busseto were treating Giuseppina Strepponi, with whom he was living openly in an unmarried relationship. She was shunned in the town and at church, and while Verdi appeared indifferent, she was certainly not. Furthermore, Verdi was concerned about the administration of his newly acquired property at Sant'Agata. A growing estrangement