A small lap dog. That is better than any cavalier. They are very rare and expensive. Many executives buy these dogs as family pets. They are not widely known and are like a diamond dog. They love to be with their owners and tolerate children. Probably the best small dog you can get. There are only a handful in the U.S.A. They are well known in the UK as the "Queen's Loyal Companion". They are also known as a King Charles Spaniel. NOT A CAVALIER!
That white man in the Rolls-Royce had a English Toy Spaniel in his passenger seat.