The Cavalier King Charles Spaniel traces its roots to 17th-century England, where small spaniels were adored by nobility. King Charles II was so devoted to his toy spaniels that he issued a royal decree allowing them anywhere — even in the Houses of Parliament. These early spaniels were depicted in countless portraits by Van Dyck, Gainsborough, and Stubbs, with their characteristic long muzzles, flat skulls, and feathered ears.

However, by the 19th century, crossbreeding with flat-nosed Asian breeds (like the Pug and Japanese Chin) changed the look of the breed, resulting in a shorter face, domed skull, and less prominent muzzle. This version became known as the King Charles Spaniel (English Toy Spaniel).

In the 1920s, an American named Roswell Eldridge offered a cash prize at Crufts dog show for any spaniel resembling the "old type" seen in royal portraits — longer nose, flat skull, and a cheerful expression. Breeders responded, and the modern Cavalier was reborn. In 1945, the Kennel Club (UK) officially recognized the Cavalier King Charles Spaniel as a separate breed from its flat-faced cousin.

Today, the Cavalier is one of the most beloved companion breeds worldwide, cherished for its unwavering affection, adaptability, and that signature "sweet face" that melts hearts.

Cavaliers are famously known as the "love sponge" of the dog world — they soak up affection and return it tenfold. They are not one-person dogs; they adore everyone: children, strangers, other dogs, even cats. Their gentle, patient nature makes them excellent therapy dogs and ideal for first-time owners.

They thrive on human companionship and can develop separation anxiety if left alone for long hours. Cavaliers are intelligent, eager to please, and moderately active — they enjoy walks and play but are just as happy curled on a lap. They rarely bark without reason and are not known for guarding instincts.

While Cavaliers are generally healthy, they are predisposed to certain conditions, most notably mitral valve disease (MVD) (heart disease) and syringomyelia (SM) (a neurological condition). Ethical breeders perform cardiac auscultation, echocardiograms, and MRI screening for SM. Other concerns include patellar luxation, episodic falling, and eye issues.

Responsible breeding has significantly reduced the incidence of early-onset MVD. Lifelong cardiac monitoring and maintaining a healthy weight are essential. Cavaliers also thrive with moderate exercise and a high-quality diet.

Their silky coats require weekly brushing to prevent mats, and their long ears need regular cleaning. Despite their luxurious appearance, grooming needs are moderate. Cavaliers are indoor dogs at heart — they should never live outside. They adapt well to apartments or houses, as long as they are close to their humans.

• Cavaliers appear in over 30 paintings by Sir Anthony van Dyck, often alongside King Charles I and his children.
• The breed's famous "Blenheim" color (chestnut and white) is named after Blenheim Palace, where the Duke of Marlborough kept these spaniels.
• A Cavalier named "Tootsie" was the first of the breed to win Best in Show at the Westminster Kennel Club (1996).

• Cavaliers are natural therapy dogs due to their intuitive empathy. Many work in hospitals, nursing homes, and schools.
• They are often called "comforter spaniels" because of their instinct to cuddle and sense human emotions.
• Despite their royal past, Cavaliers are equally happy in a modest apartment — as long as they're with you.