The Witch-king returned to Mordor to facilitate Sauron's return to power, then took Gondor's city of Minas Ithil and refortified it as the fearful Minas Morgul, and there snuffed out the line of kings of Gondor too. After Sauron's defeat by the Last Alliance, he eventually reappeared to found the evil realm of Angmar, where he gained the epithet 'Witch-king' and ruled for almost seven centuries until the kingdom of Arnor was conquered. His true identity is unknown once a mortal king of Men, he was corrupted by one of the nine Rings of Power, becoming an undying wraith in the service of Sauron. The Lord of the Nazgûl, also known as the Witch-king of Angmar, was the leader of the Nazgûl (Ringwraiths) and Sauron's second-in-command in the Second and Third Ages. ' - The Return of the King, ' The Battle of the Pelennor Fields' now he was come again, bringing ruin, turning hope to despair, and victory to death. A crown of steel he bore, but between rim and robe naught was there to see, save only a deadly gleam of eyes: the Lord of the Nazgûl. John Stephenson (The Return of the King), Andy Serkis (The Fellowship of the Ring) ' Upon it sat a shape, black-mantled, huge and threatening.

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