The One Ring: The Darkening of Mirkwood
Thranduil, Son of Oropher
King of the Woodland Realm
Thranduil was the only son of Oropher, the King of the Woodland Realm. He was born sometime during the late First Age in Doriath before its fall. At the beginning of the Second Age, the Sindar travelled east and Oropher eventually founded Greenwood the Great. In SA 3434, Thranduil and his father fought in the Battle of Dagorlad. Oropher was slain and Thranduil returned to Greenwood with roughly a third of the army that had marched to war.
At the beginning of Thranduil’s reign his kingdom encompassed all of Greenwood the Great and was known as the Woodland Realm, but as the Third Age progressed, the shadow of the Necromancer advanced, the Greenwood grew dark and became known as Mirkwood, and became infested with Orcs and giant spiders. The Wood-elves of Mirkwood were reduced in number and retreated to lands in the north of Mirkwood.
After the death of the dragon Smaug, Thranduil supported Bard the Bowman’s claim of a share of the treasure the dwarves recovered from the Lonely Mountain, since Bard was a descendant of Lord Girion of Dale, and the treasure of that town had been taken by Smaug to the Lonely Mountain. Thranduil led the elven forces in the Battle of the Five Armies. His army was position on the southern side of the Mountain, and was the first to charge.
After the battle and of Thorin’s death, Thranduil took Orcrist, which was previously confiscated in Mirkwood, and laid it upon Thorin’s tomb. The treasure was divided among Elves and Men, and Thranduil received the emeralds of Girion. Bilbo, Gandalf and Beorn traveled with the elf-host back to Mirkwood but would not stay in the woods, even when Thranduil asked them to.
When Bilbo and Gandalf bade farewell, Bilbo gave Thranduil a necklace of silver and pearls. The king gave Bilbo the title of “elf-friend” and returned with his host in their halls
Thranduil is a Sindarin word for “Vigorous spring”, from tharan (“vigorous”) and ethuil (“spring”). It was said that the name “Thranduil” was of Lemberin language (later Avarin or Telerian), along with other Sindarin names such as Legolas, Nimrodel, and Amroth among others. In Thranduil’s realm, both Sindarin and Silvan Elvish were spoken, though not all members of his Woodland folk spoke Sindarin.