The Belgian horse breed, also known as Brabant, is one of the largest breeds of horses in the world today. It is a draft horse breed and has its origins in Germany. The Brabants are so large that they can measure up to 17 hands high. A testimony to the great strength and size of this particular breed of horses is Radar- the worlds largest horse. Radar stands tall, with a height of nineteen and a half hands high. The horse weighs more than a ton.