Shadowfax, a horse of  Rohan, was untamed until approached by this wizard
The 
wizard watched as Shadowfax turned into a shining white silhouette... [DOC] [TLE] Lord of the Rings Fanatics Forum [PAR] Jul 22, 2007 ... Ciarda knew that there were not many left until the season ended, and it was then 
.... south to Rohan, and there sired a race of horses nearly as great as himself.