Second Sack of Doriath

The Second Sack of Doriath or the Second Kinslaying was the name for one such slaying of elf by elf: For a list of other occurrences, see Kinslaying (disambiguation).

The Second Sack of Doriath or the Second Kinslaying was an attack on Doriath under Thingol's son Dior by an army led by the Sons of Fëanor.

Prelude
When it became known that Dior inherited the Silmaril from his father Beren, Sons of Fëanor demanded the return of the precious and priceless holy jewel. When their demands went unanswered, they the brothers assembled an army to attack Doriath and take the Silmaril by force.

The battle and finial fall of Doriath
The Sons of Fëanor came upon the realm in the middle of winter of FA 506 and fought with the Elves of Doriath in the Thousand Caves. For the Elves of Doriath, the battle was lost but before of Doriath fell he slew Celegorm himself, the other Fëanor brothers Caranthir and Curufin were also killed. Dior's wife Nimloth was also killed and her and husband's twin sons Eluréd and Elurín were taken out into the local woods by Celegorm's cruel servants, and left to die in the atrocity. This disturbed Maedhros greatly and went back out to search for them but they could not be found.

Afterwards
The realm of the fair Elven kingdom of Doriath fell, never to rise again. Even with their victory, the remaining Sons of Fëanor did not recover the Silmaril for Dior and Nimloth's daughter Elwing escaped with the Silmaril to the havens at the Mouths of Sirion.