The oldest Elf in The Rings of Power is Círdan the Shipwright, also known as Círdan the Shipwright, the wise Lord of the Grey Havens, who was present at the awakening of the Elves and remained in Middle-earth, making him one of the longest-living and most ancient beings in the Second Age. He is portrayed as the most senior Elf, even older than Galadriel and Elrond, and his immense age grants him unparalleled wisdom and foresight.
Círdan the Shipwright is estimated to be around 10,000 years old during The Lord of the Rings and around 7,000 years old during The Rings of Power. Círdan was one of the oldest and wisest elves in Middle-earth, and was the Lord of the Falas during the First Age and Lord of Lindon during the Third Age.
Although he lived among them, Legolas was not fully of the Silvan Elves. As a son of the Elven-king Thranduil, who had originally come from Doriath, Legolas was at least half Sindar; his mother's identity is completely unknown.
Legolas could be younger than Arwen, since in the books he doesn't have a set birthdate. The movies give his age as slightly older, but it wouldn't be a stretch to say he's slightly younger instead. But as far as definitive birthdates go, yes, Arwen is the youngest known Elf.
Legolas is a Sindarin Elf from the Woodland Realm of Northern Mirkwood. His father, Thranduil, is the King of the Silvan Elves living in that realm, making Legolas the Prince of Mirkwood.
Everyone is going to have a different answer but, for elves, I assume this: The human equivalent is x5 up to 'mid-twenties' bracket. So, a '16yo' is 80 years while a '24yo' is 120 years. After that, the aging process essentially stops.
The movie the Battle of Five Armies expanded on Tolkien's canon by saying that the white gems Thranduil wanted back from the dwarves were originally intended for her, but that she was captured and taken and tortured to death by Gundabad orcs before the order was completed.
He can't simply leave Galadriel to her fate, though. So, we must intuit that Elrond kissed Galadriel in order to distract Adar and the Uruk (who were so shocked that two characters who have no business kissing were kissing they forgot to pay attention) from the rest of what he was doing.
Just like it had happened with their parents (also Half- Elves), they were given a choice to choose the life of an Elf or the life of a Human. Elrond chose the immortality of Elves, and his brother chose the Humans, the first one to do so. He lived 500 years, which is not too shabby.
It's not the years; it's the mileage. Gandalf isn't a Maia in the same way Sauron is. He was sent to middle earth as an old man, so his body is much more real than Sauron's “raiment”. He can't use his power to the same extent, he can't change his forms at will.
After the battle and 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.
Elrond is a descendent of all 3 High-elves clans. He is also a far descendent (1/16) of Melian, a Maia (An angel/god magical being). He would probably be way more powerful than Thranduil in many ways, especially with Vilya on his finger !
To clarify: Tolkien is fairly clear that Fëanor had the greatest potential of any elf, ever.
In their true, ethereal forms, Gandalf is older, but in terms of their physical bodies, Sauron is older. It can generally be argued either way, but speaking strictly in terms of their true forms, being that of spirits that exist outside of the physical realm, Gandalf is at least marginally older than Sauron.
The Ent who figures most prominently in the book is Treebeard, who is called the oldest creature in Middle-earth.
Why was Sauron afraid of Aragorn potentially possessing the Ring? Gandalf explains it in the Return of the King (during the council after the battle of the Pelennor fields) that Sauron would never think somebody would want to destroy the One Ring.
He is a Sindar Elf of the Woodland Realm and son of its king, Thranduil, becoming one of the nine members of the Fellowship who set out to destroy the One Ring. Though Dwarves and Elves are traditionally rivals, he and the Dwarf Gimli form a close friendship during their travels together.
He refers to the great serpents of the north, which most likely refers to dragons associated with Ancalagon the Black and the destruction of Gondolin, which are not the dragons of the grey mountains but dragons that those dragons descended from.
He attacks the Orcs in rage, and is later confronted by Bolg. He saves Tauriel from being attacked by Bolg, but is mortally wounded during the fight. Kíli dies with Tauriel by his side. Bolg is eventually killed by Legolas while Azog is killed by Thorin himself avenging the brothers.
The films portray Arwen as becoming human through her love for Aragorn; as in the novel, she follows the choice of her ancestor Lúthien to become a mortal woman for the love of a mortal man.
Age. Half-orcs mature a little faster than humans, reaching adulthood around age 14. They age noticeably faster and rarely live longer than 75 years.
Puberty and full height are attained at around their fiftieth to one hundredth year, when they stop aging physically. Elves marry freely, monogamously, only once, and for love early in life; adultery is unthinkable.