Home → Dog Breeds → Toy Group → Cavalier King Charles Spaniel

Cavalier King Charles Spaniel: Breed Profile, Temperament, Health, and Care Guide

A Cavalier King Charles Spaniel is a small Toy Group breed named for King Charles I and II of England, bred as an affectionate lap companion with the playful instincts of a spaniel.

A Cavalier King Charles Spaniel is a small Toy Group breed named for King Charles I and his son King Charles II of England, the latter so devoted to the breed that his dogs reportedly accompanied him nearly everywhere, including into meetings of state. Bred specifically to be a warm, affectionate lap companion, the Cavalier combines a gentle toy-dog temperament with the playful, athletic instincts of its spaniel ancestry. This guide covers where the breed originated, its temperament, how big Cavalier King Charles Spaniels get, how long they live, the health problems they are prone to, grooming, how much exercise they need, how easy they are to train, what to feed them, the pros and cons of owning one, and what else people ask.

What Is a Cavalier King Charles Spaniel and Where Did the Breed Originate?

A Cavalier King Charles Spaniel belongs to the American Kennel Club’s Toy Group. The breed takes its name from King Charles I and King Charles II of 17th-century England, the latter famously devoted to keeping small spaniels as constant companions. Breeders developed the modern Cavalier in the 20th century to recreate the longer-nosed spaniel type seen in period paintings, distinguishing it from the flatter-faced King Charles Spaniel, also called the English Toy Spaniel. Cavaliers arrived in the United States from England in 1952 but wasn’t recognized by the AKC until 1995, after which its popularity grew rapidly into a regular place in the top 20.

The American Kennel Club defines the breed in its “Official Standard of the Cavalier King Charles Spaniel”, approved January 10, 2023, which sets out the size, coat, and temperament a Cavalier King Charles Spaniel should have. As of September 2026, the AKC ranks the Cavalier King Charles Spaniel 13th of 210 breeds in popularity.

How Was the Cavalier King Charles Spaniel Brought Back?

By the early 1900s, the toy spaniels of the old paintings had been bred into flat-faced dogs. In 1926 an American, Roswell Eldridge, offered prize money at Crufts for “Blenheim Spaniels of the Old Type,” with a longer nose and flat skull. Breeders took up the challenge, and the dogs they produced became the Cavalier. The Kennel Club in Britain recognized the new breed in 1945.

What Is a Cavalier King Charles Spaniel’s Temperament Like?

A Cavalier King Charles Spaniel’s temperament is gentle, affectionate, and eager to please, and the breed does well on human companionship, making it a strong match for families, retirees, and first-time owners alike. Its standard calls for a dog that is “gay, friendly, non-aggressive with no tendency towards nervousness or shyness.” Cavaliers are happiest involved in family activities, whether that’s a walk in the park or curling up on the couch, and the breed rarely barks excessively. That same devotion means Cavaliers can develop real separation anxiety if regularly left alone for long stretches.

Do Cavalier King Charles Spaniels Get Along With Other Pets?

Yes, most Cavaliers mix happily with other dogs and with cats they are raised alongside. Their spaniel roots do show in a love of chasing birds and squirrels, so a fenced yard or a leash matters outdoors. Two Cavaliers together are a common arrangement, and a second dog can ease the breed’s dislike of being alone.

How Big Do Cavalier King Charles Spaniels Get?

Cavalier King Charles Spaniels are a small, well-proportioned breed with a silky coat, long feathered ears, and a gentle, expressive face. The breed comes in four recognized coat colors: Blenheim (chestnut and white), tricolor, black and tan, and ruby. Many Blenheims carry a chestnut “lozenge,” or Blenheim spot, on the top of the head, which the standard calls unique and desirable.

What Is the Average Cavalier King Charles Spaniel Height and Weight?

Measure	American Kennel Club figure
Height	12-13 inches
Weight	13-18 pounds
Life expectancy	12-15 years

Figures are from the American Kennel Club Cavalier King Charles Spaniel breed profile, retrieved September 2026.

How Long Do Cavalier King Charles Spaniels Live?

Cavalier King Charles Spaniels live 12 to 15 years, though the breed’s most significant health risk, a heart condition covered below, means regular cardiac monitoring matters more here than with most toy breeds. Consistent veterinary care throughout the dog’s life gives a Cavalier the best chance at a full lifespan.

What Health Problems Are Cavalier King Charles Spaniels Prone To?

Cavalier King Charles Spaniels are documented as being at higher risk for the following conditions.

What Is Mitral Valve Disease in Cavalier King Charles Spaniels?

Mitral valve disease is a degeneration of the valve between the left chambers of the heart, which lets blood leak backward. It is the breed’s most significant health concern and a leading cause of death in Cavaliers. Research has found that about half of Cavaliers have a heart murmur by age five and nearly all do by age ten. Coughing, fast breathing at rest, and tiring on walks are signs of heart failure. Medication started at the right stage delays that point.

How Do Breeders Reduce Mitral Valve Disease in Cavaliers?

Breed clubs recommend an annual heart exam by a veterinary cardiologist for breeding dogs. The widely used breeding protocol advises against breeding Cavaliers younger than two and a half years, and asks that both parents of a litter be free of murmurs until age five. Dogs whose parents stayed clear longer develop the disease later on average. Ask to see the cardiologist’s certificates, not just a general vet’s note.

What Is Syringomyelia in Cavalier King Charles Spaniels?

Syringomyelia is a condition in which fluid-filled cavities form in the spinal cord near the neck, linked to Chiari-like malformation, a skull that is too small for the brain. Scratching at the neck or shoulder without touching the skin, yelping, and sensitivity when the head or neck is handled are typical signs. MRI diagnoses it, and scans have found cavities in a large share of Cavaliers, many without signs. Pain medication and drugs that reduce spinal fluid manage most symptomatic dogs.

What Other Health Problems Affect Cavalier King Charles Spaniels?

Ear infections are common because the long, fluffy ears trap moisture. Cataracts, dry eye, and progressive retinal atrophy show up on routine eye exams. Two inherited conditions, episodic falling and the curly coat and dry eye syndrome, have DNA tests. Many Cavaliers also have fewer, larger platelets than other dogs; this is harmless, but it can look alarming on a blood test, so vets should know about it.

Why Are Cavalier King Charles Spaniels Prone to Obesity?

Cavaliers love food and beg persuasively. Extra weight adds strain on the heart and joints, so measured meals matter more here than in less food-driven breeds. Dental disease, common in small mouths, is the other daily-care priority and is managed with brushing and professional cleanings.

How Do You Groom a Cavalier King Charles Spaniel?

Cavalier King Charles Spaniels have a silky, moderate-length coat with feathering on the ears, legs, and tail, and it needs daily to near-daily brushing to prevent matting, in particular in the feathered areas. The coat can be clipped shorter during warmer months for comfort and easier maintenance, and weekly ear and eye checks are worth building into the regular grooming routine given the breed’s documented risks in both areas.

Grooming task	How often
Brush and comb, with attention to ears and legs	Daily or every other day
Check and clean ears	Weekly
Wipe tear stains under the eyes	Daily as needed
Trim hair between the paw pads	Monthly
Trim nails	Every 3 to 4 weeks
Brush teeth	Daily

How Much Exercise Does a Cavalier King Charles Spaniel Need?

A Cavalier King Charles Spaniel needs around an hour of exercise a day, ideally split into two walks to avoid over-exertion. Despite carrying genuine spaniel athleticism, the breed is just as happy curled up on the couch as out on a long hike, making it suited to a range of activity levels as long as its baseline daily needs are met.

Which Activities Suit a Cavalier King Charles Spaniel?

Walks, gentle hikes, and games of fetch in the yard cover the basics. Cavaliers also compete in agility, rally, and obedience, and many work as therapy dogs thanks to their calm manner with strangers. Dogs with diagnosed heart disease should exercise at a pace their vet approves. Hot weather calls for shorter outings, since the breed’s shortened muzzle makes cooling harder than in longer-nosed spaniels.

Are Cavalier King Charles Spaniels Easy to Train?

Yes, Cavalier King Charles Spaniels are bright and eager to please, which makes them easy to train, in particular with consistent, positive reinforcement methods. The breed’s people-focused temperament means training sessions built around praise and attention, not just treats, work well.

What Should Cavalier King Charles Spaniel Training Focus On?

House-training and time alone come first. Short absences that grow gradually teach a puppy that its people come back, which heads off separation anxiety. Recall matters too. A dog that will happily chase a bird across a road needs to come back when called, and handling the ears, paws, and mouth from puppyhood makes grooming and vet visits easier for life.

What Should You Feed a Cavalier King Charles Spaniel?

Cavalier King Charles Spaniels do well on a small-breed formula suited to their age and activity level, and because the breed is prone to begging and weight gain, measured portions and limited treats matter more here than with less food-motivated breeds. Keeping the breed lean also reduces strain on both the joints and the heart, given the Cavalier’s documented cardiac risk.

How Many Meals a Day Does a Cavalier King Charles Spaniel Need?

Puppies eat three or four small meals a day until about six months, then two. Adults do well on two measured meals. Weigh the dog monthly: a Cavalier that gains a pound has put on more than 5 percent of its body weight. Low-calorie treats such as small pieces of carrot keep training rewards from adding up.

What Are the Pros and Cons of Owning a Cavalier King Charles Spaniel?

Here are the main advantages and drawbacks of owning a Cavalier King Charles Spaniel, side by side.

Pros	Cons
Gentle, affectionate temperament well suited to families, seniors, and first-time owners	Documented, significant risk of mitral valve disease, a serious heart condition
Highly trainable and eager to please	Prone to separation anxiety given intense attachment to owners
Rarely barks excessively	Daily grooming needed to manage the feathered coat
Suits a range of activity levels	Prone to begging and weight gain

People who love the breed’s gentle temperament but would rather not search for a breeder can contact Cavalier King Charles Spaniel rescue organizations, which place adult dogs regularly.

What Else Do People Ask About the Cavalier King Charles Spaniel?

The questions below cover what it costs to buy a Cavalier King Charles Spaniel, whether a family home is a good fit, what mitral valve disease in Cavalier King Charles Spaniels is, and how the King Charles Spaniel differs from the Cavalier.

What does it cost to buy a Cavalier King Charles Spaniel?

Cavalier King Charles Spaniel prices vary by region, bloodline, and breeder reputation, and a puppy from a breeder who screens for mitral valve disease and eye conditions costs more than one that doesn’t. Adopting an adult Cavalier through a rescue is a lower-cost alternative.

Is a family home a good fit for a Cavalier King Charles Spaniel?

Yes, Cavalier King Charles Spaniels are widely regarded as excellent family dogs, thanks to a gentle, adaptable temperament that suits families, retirees, and first-time owners alike. Their people-focused nature means they do best in homes where someone is regularly present rather than left alone for long stretches.

What is mitral valve disease in Cavalier King Charles Spaniels?

Mitral valve disease is a heart condition in which the valve between the heart’s chambers deteriorates over time, and it’s the single most significant, well-documented health concern in the breed, affecting a large share of Cavaliers to some degree as they age. Regular cardiac screening by a veterinarian, ideally including annual heart auscultation, gives owners the best chance of catching and managing the condition early.

How does the King Charles Spaniel differ from the Cavalier King Charles Spaniel?

Though related and similarly named, the Cavalier King Charles Spaniel and the King Charles Spaniel, also called the English Toy Spaniel, are separate AKC-recognized breeds. The King Charles Spaniel is smaller with a flatter, more pushed-in face and a dome-shaped head, while the Cavalier has a longer muzzle and is considered slightly more athletic and playful.

Related Guides

More guides on The Dogs Wiki cover behavior, health, grooming, training, nutrition, and adoption.

Guide
Behavior
Health
Grooming
Training
Nutrition
Adoption