The Brotherhood of the Horse (aka Knights of Azeroth or Knights of Stormwind) was the official name of the kingdom of Stormwind's knights before the First War. (W1manH 22) (W2man 31, 40) Most of the knights were killed fighting in the last battles of the war, but took many orcs with them. They were the most feared warriors in the Azerothian army. Many of the knights who fell to the orcs were transformed into death knights by Gul'dan. (W2man 68)