The Cockalier Spaniel is a hybrid between the Cocker Spaniel and the Cavalier King Charles Spaniel. Erroneous Alias: King Cocker, Cockalier, Cockilier Country of Origin: Cockalier Spaniels originate in the United States of America. Original Purpose: The Cockalier Spaniel is a great family companion. Breed Characteristics: Cockalier Spaniels generally are calm and loving. Cockalier Spaniels are thought to be very loyal and should show no signs of aggression. Cockalier Spaniel tend to be very friendly towards children and other animals. Life Expectancy: Average life expectancy for the Cockalier Spaniel is 10 - 13 years.