The Marquess of Labrador is almost universally condemned by historians for his incompetence at the Congress. One standard Spanish history textbook condemns him for "...his mediocrity, his haughty character, and his total subordination to the whims of the king's inner circle, by which he achieved nothing favorable." Paul Johnson calls him "a caricature Spaniard who specialized in frantic rages, haughty silences and maladroit demarches."
