Cavalier King Charles Spaniel Custom ComboBuild Your Own Cavalier King Charles Spaniel Combo Create a Combo Just For Your Cavalier's Singular Needs Cavalier King Charles Spaniels are utter delightful companions. They are possibly the gentlest, most polite dogs that ever lived. I can hear them, in English accents, of course, saying, "You can have that juicy bone, my dear sir," then, "Oh, no, I can't, you chew it, my dear." But along with their glorious Spaniel faces can come a predisposition