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 except in the matter of sunrise, which he likes to see up and dressed, and I from my bed." Nonetheless on 15 May, Verdi signed a contract with La Fenice for an opera for the following spring. This was to be "Simon Boccanegra". The couple stayed in Paris until January 1857 to deal with these proposals, and also the offer to stage the translated version of "Il trovatore" as a grand opera. Verdi and Strepponi travelled to Venice in March for the premiere of "Simon Boccanegra", which turned out to be "a fiasco" (as Verdi reported, although on the second