The Chilier is a hybrid between the Cavalier King Charles Spaniel and the Chihuahua. Country of Origin: The Chilier originate in the United States of America. Original Purpose: The Chilier is a designer breed that was developed to be an exceptional family companion. Breed Characteristics: The Chilier is energetic, independent, loyal and playful. They tend to be very friendly and get along well with people and other pets. The Chilier is intelligent and trainable. Life Expectancy: Average life expectancy for the Chilier is 10 - 13 years.