Luke Skywalker was a human male Jedi Knight (later Master) and the protagonist of the original trilogy. As the last Padawan of Obi-Wan Kenobi, he became an important figure in the Rebel Alliance's struggle against the Galactic Empire. Luke was heir to a family deeply rooted in the Force, being the twin brother of Rebellion leader Princess Leia Organa of the planet Alderaan, the son of former Queen of Naboo and Republic Senator Padmé Amidala and Jedi turned Sith Lord Darth Vader (Anakin Skywalker), and the maternal uncle of Ben Solo. After redeeming his father from the Dark Side of the Force, who died killing his master and the last Sith, Emperor Palpatine / Darth Sidious, in order to save Luke, he set out to train a new generation of Jedi to rebuild the Order, only to have them wiped out by Supreme Leader Snoke, a puppet created by a revived Palpatine, who also turned Ben to the Dark Side, adopting the Kylo Ren persona. Skywalker then spent the rest of his life in exile on Ahch-To, the original headquarters of the Jedi Order, blaming himself for Ben's turn and the destruction of his Order, until he was found by Rey, the last Jedi and the secret granddaughter of Palpatine, whom he reluctantly trained in the Jedi arts. Shortly after, he gave his life to distract Kylo Ren, now Supreme Leader of the First Order, on the planet Crait via a Force Projection, allowing the Resistance to escape. When Rey learned of her lineage and exiled herself on Ahch-To out of fear of turning to the Dark Side, Luke appeared before her as a Force spirit and encouraged her to face Palpatine. Along with the spirits of other past Jedi, he then empowered Rey during her final confrontation with Palpatine, which marked the definitive defeat of the Sith, and later watched from afar alongside his sister's spirit (who had died redeeming Kylo Ren) as Rey renounced her lineage, becoming a Skywalker instead.