Sauron

From Lotro-Wiki.com

Originally a Maia of Aulë's people, Sauron was early corrupted by Melkor and became his most trusted lieutenant. In the Wars of Beleriand, Sauron, master of phantoms and shadows, was the most feared of Morgoth's servants, but after the War of Wrath and the expulsion of the first Dark Lord, Sauron rose to become the greatest enemy of Elves and Men in the Second and Third Ages.

Sauron is important in Aragorn's history because Sauron was partly responsible for the downfall of Númenor, where Aragorn's Dúnedain ancestors fled from. Sauron was defeated by Aragorn's line three times. The Dúnedain owned the seven palantír stones that were brought to Middle-earth, and so Aragorn was able to wrest control of the palantír from Sauron.

In the context of LoTRO the Witch King of Angmar is the chief Nazgûl and servant of Sauron.

Sources

• Sauron at Wikipedia
• Sauron at the Encyclopedia of Arda
• Sauron at The Thain's Book
• Sauron at the Ardapedia