The Witch-King on Angmar was the leader of the Nazgul, also referred to as the Ringwraiths, Black Riders, The Nine, or the Numbolg. The Nazgul were once great kings of men, men who were given rings of power by Sauron as a gift. These great kings did not know that the power of these rings were corrupt and that once they put the rings on, they were under Sauron's control. The Witch-King had a fortress in Angmar while his master Sauron was regaining his power. While his master was gone, the Witch-King had made an army in the mountains of Angmar and made an attempt to destroy Middle-Earth in the name of his master. He was very close to conquering Middle-Earth, but the Elves and Men had made one last attempt to defeat the Witch-King and gathered all of their armies to the gates of Angmar itself. The Witch-King was driven back to the spirit world and Angmar was no more. Later in the Third Age the Nine regained power and Sauron did and took forms again. They had no real role in The Hobbit as to the Battle of the Five Armies, but they did have a small battle with the White Council, Saruman the White, Gandalf the Grey, Elrond of Rivendell, and Lady Galadriel of Lothlorien. Sauron lost the battle and fled with the Nine to Mordor where he will start rebuilding his fortress and start to make a deal with Saruman. Many years after that event Sauron regained much power and did rebuild his fortress in Mordor and began to make an army that continuously attacked Gondor's borders. While Sauron was occupied with Gondor he had the Nine look for the ring, for it has called to him by Bilbo Baggins when he put on the ring saying goodbye before he left to Rivendell. The Nine went through all the Shire looking for Frodo, Bilbo's nephew whom he had given the ring to before leaving. Frodo evaded the Nine through the Shire and again in Bree when he met up with Aragorn and he made a trap for the Nine. Frodo was finally found at Weathertop when Aragorn was scouting ahead while the Hobbits slept. The Witch-King stabbed Frodo with a Morgal Blade, a blade of poison and corruption that will turn any into a Servant of the Nine if not cured. Aragorn then made the Nine flee by catching them on fire, soon after the Nine recovered and found Frodo before the River of Rivendell, where they were washed away by the powerful blasts of water that Elrond sent to save Frodo. The Nine then fled to Mordor to recover strength and to prepare their armies for war. After the event at the River, the Witch-King had special armor and weapons made for him and gathered forces at Minas Morgul. The Witch-King of Angmar made a full assault on Gondor and pushed them back to the great city of Minas Tirith. The Witch-King had broken the gates of Minas Tirith and stormed the city, about to claim it by getting to the final level of the city, the horns of Rohan called and he was sent to the front lines to confront them. He was then defeated and sent back to Mordor in a formless state until he could regain power. He then led one final attack at the gates of Mordor until Frodo had dropped the Ring into the Fires of Mount Doom and Sauron was officially defeated and the Nine's power was no more, as they died and could not return to the spirit world as formless beings, being banished to the Void along with Sauron.