Cavalier King Charles Spaniel

📖 About the Cavalier — King Charles II & Blenheim Palace

The Cavalier King Charles Spaniel is named after King Charles II of England (1660-1685) — a monarch so devoted to his small spaniels that he was rarely seen without several at his heels. Charles II was so passionate about his dogs that he issued a royal decree allowing King Charles Spaniels entry into any public place in England, including the Houses of Parliament — a decree that, legend says, still technically stands. The diarist Samuel Pepys noted that the King "played with his dogs all the while" during important Privy Council meetings. Charles II's spaniels were the celebrities of Restoration England — and their descendants would become one of the world's most beloved breeds.

Blenheim Palace & The Duchess Thumb Print

The Duke of Marlborough, John Churchill (ancestor of Winston Churchill), kept a strain of red-and-white toy spaniels at his estate, Blenheim Palace. These dogs were used for hunting — flushing small game — and their rich chestnut-and-white coloring became known as the "Blenheim" pattern. According to legend, while the Duke was away fighting at the Battle of Blenheim (1704), his wife Sarah, Duchess of Marlborough, pressed her thumb against the head of an expecting dam while anxiously awaiting news of her husband's safety. When the puppies were born, they all bore a chestnut thumbprint on their foreheads — the "Duchess Thumb Print" or "Blenheim Spot" that remains a prized marking on Blenheim Cavaliers to this day.

Roswell Eldridge & The Breed's Revival (1926)

By the early 1900s, the original longer-muzzled spaniel type had been nearly bred out of existence — replaced by the flat-faced King Charles Spaniel (English Toy Spaniel) popular in Victorian times. In 1926, an American named Roswell Eldridge arrived at Crufts dog show and offered £25 prizes for "Blenheim Spaniels of the old type, as shown in pictures of King Charles II's time — long face, no stop, flat skull, not inclined to be domed." The challenge worked. Breeders began selecting for the old-type spaniel, and in 1928 the Cavalier King Charles Spaniel Club was founded. The breed standard was based on a dog named Ann's Son and old paintings by Van Dyck, Landseer, and Gainsborough. The Kennel Club granted separate registration in 1945. Every Cavalier alive today descends from that 1920s revival — a genetic bottleneck that explains the breed's devastating health problems. The Cavalier was AKC-recognized in 1995. The AKC breed standard and the American Cavalier King Charles Spaniel Club (ACKCSC) are the definitive resources.

💛 Personality & Temperament

The Cavalier is the ultimate companion dog — bred for centuries not to hunt, not to guard, not to work, but simply to be WITH people. This is the breed that will greet you at the door like you've been gone for years, follow you to the bathroom, curl up on your lap, and look at you with eyes that communicate pure, unconditional adoration.

• Affectionate to an almost pathological degree: Cavaliers don't just "like" people — they need people. They were bred for 400+ years to be lap dogs, bed warmers, and constant companions to royalty and aristocrats. This genetic programming means they cannot handle being alone. Severe separation anxiety is the breed's most common behavioral issue — destructive chewing, continuous barking, house soiling. A Cavalier without their person is genuinely distressed.
• Wonderful with children, dogs, cats, strangers, and literally everyone: Cavaliers have zero aggression and zero suspicion. They greet every human and animal as a potential friend. This is a terrible guard dog — a burglar will be greeted with a wagging tail and a request for belly rubs.
• The Cavalier "tail never stops": A Cavalier's tail is a constant, gentle, rhythmic metronome of happiness. It wags when they see you, when they see food, when they see another dog, when they see a leaf blowing. If a Cavalier's tail stops wagging, something is genuinely wrong.

⚠️ MVD — Mitral Valve Disease (50% by Age 5, 100% by Age 10)

⚠️ Syringomyelia (CM/SM) — 90%+ Carry the Skull Malformation

⚠️ The Breeding Crisis — Only 0.28% of UK Litters Have Both Parents MRI-Tested

The Cavalier faces a unique genetic crisis: the breed was rebuilt from a tiny handful of dogs in the 1920s, creating a severe genetic bottleneck that concentrated MVD and CM/SM genes throughout the entire population. Over two decades of MRI screening protocols have been largely ineffective because breeder compliance is almost nonexistent. UK Kennel Club data shows only 0.28% of litters have both parents tested. In the United States, the two national Cavalier clubs have refused to acknowledge SM breeding guidelines and place no restrictions on breeding affected dogs. If you're buying a Cavalier puppy, demand to see BOTH parents' cardiologist reports (echocardiogram after 2.5 years) AND BVA/KC CM/SM MRI grades. If the breeder cannot produce these — walk away. The only ethical path forward for this breed is mandatory screening + outcrossing to introduce genetic diversity.

⚕️ Health & Wellness

• MVD: See above. Annual echo from age 2. Medication when diagnosed.
• CM/SM: See above. MRI screening. Harness only — never a collar.
• Hip Dysplasia: OFA screening recommended.
• Patellar Luxation: Common in small breeds.
• Eye Conditions: Cataracts, dry eye, corneal ulcers. Annual CAER exam.
• Ear Infections: Floppy, heavily feathered ears trap moisture. Weekly cleaning.
• Obesity: Extra weight = multiplied strain on failing heart. Strict portion control.

🏃 Exercise & Activity

Cavaliers need 30-60 minutes of moderate exercise daily. They're adaptable — happy with walks or a fenced yard. NEVER use a collar — harness only (collar pressure can trigger SM pain).

✂️ Grooming & Maintenance

The Cavalier's silky, medium-length coat has feathering on ears, chest, legs, and tail. Brush 2-3× weekly with pin brush + metal comb. Pay extra attention to behind ears (#1 mat location), armpits, and feathering. Ear cleaning weekly — floppy ears trap moisture. Nail trims every 2-3 weeks.

💡 Fun Facts