Description
Cavalier King Charles Spaniels have what is called a "royal" appearance. One of the toy spaniel dogs, this breed is very graceful and well balanced. The dog naturally has a very warm and happy expression. The Cavalier's large, dark, round eyes give a warm, lustrous look and the cushioning under the eyes lend to the very soft expression. The long ears fan slightly forward, framing the face gracefully. The coat is a medium length which sometimes has a slight wave to it. There is a soft feathering on the dog's ears, chest, tail and paws.
Colors
The AKC accepts 4 colors: Black, Black & Tan, Ruby and Blenheim. Blenheim is amazing, it is a rich chestnut that is broken up on a clear. pearly white background color. 
Characteristics
Known for its incredible charm, Cavalier King Charles Spaniels are wonderful with children and are exceptional with senior citizens. This breed is known for being very smart, happy, playful, always willing to please and very sweet.
Origin & History
Commonly mispronounced as King Charles Cavaliers, (leaving out the "Spaniels and switching the words around"),
this breed's ancestors date back to before the Victorian Era. However, during this time, the breed became virtually extinct...breeding slowed down as the public demanded shorter-nosed breeds at the time. In 1926, Roswell Eldridge took great effort into bringing back the Cavalier King Charles Spaniels.
Because of his desire for this amazing breed to thrive, breeding began once again. They did not arrive into American until 1952! And it was only in 1996 that the AKC recognized the breed.
Health
Sadly, this beautiful breed has 2 major genetic health issues and this is why the life span is so much shorter than other small breed dogs. Mitral valve disease is very common. This is a condition in which heart murmurs often become progressively worse to the point of heart failure. No matter what anyone may tell you, all lines of Cavaliers worldwide are potentially susceptible. The 2nd major health concern for this small dog is Syringomyelia (SM). This is a condition affecting the brain and spine. It is caused by a malformation in the lower back of the skull (which is hereditary) which reduces the space available to the brain, compressing it and often forcing it out through the opening into the spinal cord.
This breed is also prone to Episodic Falling (not to be confused with epilepsy). Some develop dry eye syndrome (keratitis sicca or keratoconjunctivitis sicca -- KCS)., which is genetic. Dry eye is an inflammation of the cornea stops the process of the dog being able to produce tears. While there is no actual cure, daily medication will greatly help.