The Kladruber is the oldest czech horse breed, bred in Kladruby nad Labem national stud, and although it is approching 400 years old, it is remarkably rare (90 mares as of 1995). Kladruby stud was founded in 1579 by Rudolf II as an Imperial stud, at the Perlstein stables.
The breed was based on imported Spanish (such as the Andalusian) and Italian horses, crossed with Neapolitan, Danish, Holstein, Irish, and Oldenburg blood, in addition to the heavy Czech breeds.
The animal was first developed to be a galakarosier; a heavy type of carriage horse used to pull the imperial coach, usually in a four- or six-in-hand, at ceremonies and funerals. It originally came in a variety of colors, including palomino and appaloosa, although today the breed is strictly gray or black, due to a breeding program requiring 18 white and 18 black stallions for various ceremonies of the court. Wikipedia, the free encyclopedia.