Complex sentence: Juan Canaveris (1748--1822) was an Piedmontese notary and functionary, or official, for the viceroyalty of Río de la Plata.Canaveris was the only Italian who had attended Open Cabildo, during May 1810.
Split into simpler sentences: Juan Canaveris (1748--1822) was an Piedmontese notary and functionary, or official, for the viceroyalty of Río de la Plata. He was the only Italian who had attended Open Cabildo, during May 1810.