Aragorn II Elessar was the son of Arathorn II, descendant of Isildur. As such, Aragorn was the sixteenth chieftain of the Dúnedain of the North, and the heir to the kingdoms of Gondor and Arnor. His sword was Andúril, forged from the shards of Narsíl, the sword of Elendil. It was broken at the Last Alliance of Elves and Men, and later Isildur used it to cut off Sauron's Ring finger. During The Return of the King, it was reforged, and re-named to Andúril. Aragorn was a member of the original Fellowship of the Ring, a sworn ally to Frodo, an old friend of Gandalf the Grey, brother-in-arms to Legolas and Gimli, and comrade to Boromir. When Boromir was slain at Amon-Hen, Aragorn honoured his fallen friend by wearing his wrist braces bearing the White Tree of Gondor. He also carried a curved Elf knife, a sword, the sword Andúril, a bow, and a utility knife attached to the scabbard of his original sword. After the end of the War of the Ring, he became King of the Reunited Kingdom. He was the lover of Arwen Undómiel, and later, her husband.
Aragorn, along with the Fellowship, were affected by the dimensions crisis by seeing Gandalf and Frodo getting sucked into a vortex disappearing into nowhere.