Westphalian gelding Rio De Janeiro. Westphalian or Westfalen comes from Germany, Warendorf stud. The stud was founded in 1826 but even before that year there had been horses with good quality in Westphalian region. The studbook was opened in 1888. The modern Westfalen is a well-moving warmlood with good rideability. The most famous Westfalens are probably Ahlerich and Rembrandt, both won Olympic medals in dressage. They're usually black, bay, gray, or chestnut, other colors are very rare.