Human: Why did the court jeweller of Charles Emmanuel I, Duke of Savoy earn broad renown for his pale red "Chiaretto"? Assistant: 
The court jeweller of Charles Emmanuel I, Duke of Savoy earned broad renown for his pale red "Chiaretto" made entirely from the Nebbiolo grape. During the "Risorgimento" (Italian unification) of the 19th century, many Piemontese winemakers and land owners played a pivotal role. The famous Italian patriot Giuseppe Garibaldi was a winemaker who in