In Italian, his last means "originating from Catalonia, Spain". Indeed, there was a large migration of Spaniards from Catalonia to Italy in the 11th and 13th centuries.
Growing up, I always enjoyed watching LOST IN SPACE with my father. Whenever Will Robinson got into a scrape, I would turn to my dad and say, "I hope *I* wasn't ever that much trouble for you." Dad would smile and say, "Actually, you were *worse*."