Question: Which breed of dog, Trigg Hound or Welsh Springer Spaniel, were relatively unknown until a succession of victories in dog trials by the breed increased its popularity?
Sentence (from "Trigg Hound"): The Trigg Hound (also known as the Trigg Foxhound or Hayden Trigg Hound) is a variety of the American Foxhound, developed in Kentucky by Colonel Haiden Trigg.
Relevant evidence: Yes