Italian patriot, began life as a sailor, associated himself enthusiastically with Mazzini for the liberation of his country, but being convicted of conspiracy fled to South America, where, both as a privateer and a soldier, he gave his services to the young republics struggling there for life; returned to Europe, and took part in the defence of Rome against France, but being defeated fled to New York, to return to the Isle of Caprera, biding his time; joined the Piedmontese against Austria, and in 1860 set himself to assist in the overthrow of the kingdom of Naples and the union of Italy under Victor Emmanuel, landing in Calabria and entering Naples, driving the royal forces before him without striking a blow, after which he returned to his retreat at Caprera, ready still to draw sword, and occasionally offering it again, in the cause of republicanism (1807-1882).