The Nonius (Hungarian: Nóniusz) is a Hungarian horse breed named after its Anglo-Norman foundation sire. Generally dark in color, it is a muscular and heavy-boned breed, similar in type to other light draft and driving horses. The breed was developed at the Imperial Stud at Mezőhegyes, Hungary by careful linebreeding. Originally bred to serve as a light draft and utility horse for Hungary's military, the breed became a useful agricultural horse during the 20th century. The depredations of World War II significantly reduced the Nonius' population, and in the decades after the war, a downturn in the usage of horses in Hungary sent many members of the breed to slaughter. Today the breed is bred by preservationists and is used in agriculture, leisure riding, and competitive driving sports. The