The story of Marko cannot be told without some account of Sharatz, his much-loved piebald steed, from whom he was never parted.
Sharatz was undoubtedly unique. There are several versions of the story as to how Marko became possessed of him: Some of the bards assert that Sharatz was given to Marko by the same veela who had from the first endowed him with his marvellous strength; but there are others who affirm that Marko once bought a foal suffering from leprosy, and that the Prince tended him himself and completely cured him, taught him to drink wine, and finally made him the fine horse that he became.
And there are others again who say that at one time, in his youth, Marko served a master for three years, and that for his sole reward he asked permission to choose a horse from among those then grazing in the meadow. His master gladly consented, and Marko, according to his custom, tested each horse in turn, by taking it by the tail and whirling it round and round.
At last, when he came to a certain piebald foal he seized it by the tail: but this animal did not stir, and Marko, with all his vast strength, could not make it move one step. Marko chose that foal, and it became his beloved Sharatz. The Serbians of Veles still call a great plain near Demir-Kapi 'Markova Livada' (Marko's meadow). Sharatz means 'piebald,' and it is said that the skin of Marko's horse was more like the hide of an ox in appearance than like the skin of an ordinary horse. The Prince called him by various endearing names, such as Sharin or Sharo, and was devoted to him for the hundred and sixty years they were together.
This wonderful beast was the strongest and swiftest horse ever known, and he often overtook the flying veela. He was so well trained that he knew the very moment when to kneel down to save his master from an adversary's lance; he knew just how to rear and strike the adversary's charger with his fore-feet. When his spirit was thoroughly roused Sharatz would spring up to the height of three lengths of a lance and to the distance of four lance-lengths forward; beneath his hoofs glittering sparks shone forth, and the very earth he trod would crack and stones and fragments fly in all directions; and his nostrils exhaled a quivering blue flame, terrifying to all beholders. He often bit off the ears of enemies' horses and crushed and trampled to death numbers of Turkish soldiers. Marko might peacefully doze, and sometimes even go to sleep, when riding through the mountains; and all the time he was safe, for Sharatz would keep careful guard. Therefore the Prince would feed his steed, with bread and wine, from the vessels that he used himself and loved him more than he loved his own brother; and Sharatz shared, as he deserved to share, the glory of many a victory with his master. Marko never rode upon another horse, and together they were described as "a dragon mounted upon a dragon."