Alderaan's princess knew she had been adopted by Bail and Breha Organa after the Clone Wars, but she had no idea who her parents were. That was until Luke Skywalker told her the truth - that he was the son of Darth Vader, and that she was his sister.
Vader was hunting down the pilot who blew up the Death Star, and hired Boba Fett to find them. Boba was unable to, but he did give Vader a name: “Skywalker.” This, combined with his knowing Luke was Force-sensitive and had been trained by Obi-Wan, was what made him realize the truth.
The Emperor never learned of Darth Vader/Anakin Skywalker's daughter Leia. Darth Vader himself only learned of her existence during their final duel during ROTJ when Luke was concerned for his friends and Vader sensed his thoughts of her.
Luke and Leia never sensed that they were twins until Return of the Jedi despite both being sensitive to the Force. Anakin Skywalker's twin children are the original Star Wars trilogy's driving force, having been separated after Padme's death.
Yes, they did. Eventually, Leia contact her good friend Pooja Naberrie to discuss her mother so they definitely knew about Padmé Amidala and the fact she was their biological mother. did luke and leia ever figure out who their mother was?
Darth Vader didn't learn he had a daughter until Return of the Jedi, when he stood before Emperor Palpatine. The Emperor's power probed Luke's mind, attempting to goad him to fall to the dark side, and he discovered Leia's existence. "Sister," the Emperor taunted.
Leia is remembering Padme but the images she sees are due to her force sensitivity, to quote Yoda in Empire "Through the Force, things you will see. Other places. The future...the past...old friends long gone." This could suggest that Leia is confusing Force visions with memories.
Presumably, the scene was simply meant to make Han jealous. Still, Luke looked very thrilled by this unexpected turn of events and Leia seemed to consider both men romantically, though the sexual tension with Han was admittedly much more palpable.
Did Luke and Leia know they were siblings when they kissed?
In a medical center shortly after, Princess Leia checks on a recovering Luke, and in an effort to make Han jealous, she kisses the bedridden hero and walks away. At the time, neither Luke nor Leia knew they were siblings,...
While the kiss was simply intended to make Han Solo jealous, the full implications of the encounter became even more problematic when Leia is revealed to be Luke's twin sister during Return of the Jedi.
In the post-2014 canon universe, the story that reveals Darth Vader discovering Luke Skywalker's identity (and thus the fact that the Death Star's destroyer is his son) is issue 6 of 2015's Star Wars comics by Marvel, which takes place sometime shortly after A New Hope.
Bail Organa was present during the climactic end of Star Wars: Episode III - Revenge of the Sith, and there can be no doubt he was aware of Darth Vader's true identity.
Why did Darth Vader not sense Leia was his daughter?
Summary. Darth Vader's failure to recognize Leia as his daughter in Star Wars: A New Hope stems from George Lucas's late decision to make Luke and Leia siblings. Leia's Force abilities and her lack of awareness of her true identity also contributed to Vader's inability to sense their familial connection.
Returning to Dagobah to complete his training, an ailing Yoda told Luke the terrible truth that Vader was his father, Anakin Skywalker. Rather than destroy his father, Luke sought to bring him back into the light. At 900 years old, Yoda passed away, telling Luke that there was another Skywalker.
Instead of being in the life suit, Vader looks like an older Anakin who never received the devastating injuries, and Padmé and Luke (who struck down Palpatine) are by his side. It's during these visions Palpatine realizes Luke - who he only knew as the Rebel who destroyed the Death Star - is Anakin's son.
The two recognize Luke's similarities to Anakin and try to prevent him from sharing his father's fate, but they let him remain Luke Skywalker instead of having him go by Luke Lars out of respect for his grandmother, Shmi Skywalker.
It was revealed that Luke and Leia were siblings, and the kiss in "The Empire Strikes Back" was part of Leia's attempt to make Han Solo, with whom she had a romantic relationship, jealous.
This made Lucas realize that the prospect of Vader turning his sister to the dark side would make Luke lash out the way he did. Thus, the nascent concept of Luke and Leia being siblings provided a major emotional jolt for Vader and Skywalker's climactic fight.
In the 2015 film Star Wars: Episode VII – The Force Awakens, it is revealed that Han had a son named Ben with Leia. The family breaks apart following Ben's descent into the dark side as Kylo Ren, with Leia and Han separating. Luke is not revealed to have any children.
She assures him the conversation was about Luke learning that she is his sister, but the jealousy alone is enough for Leia to know that her love for Han is reciprocated. After avoiding dropping the L-bomb, Han finally tells Leia that he loves her when she saves him from some Stormtroopers.
There is no implication or indication that Luke and Leia ever slept with one another, even before they knew they were siblings. If so, we must assume both of them would have had a “reaction” when they learnt the truth, but actually both of them seem remarkably little upset over it.
In the Star Wars canon, there is no indication that Leia ever spoke with Anakin's Force ghost after discovering he was her father. Anakin's Force ghost appeared to Luke Skywalker at the end of "Return of the Jedi" but did not appear to Leia in any of the subsequent movies, books, or other media.
In Part III, Leia revealed her knowledge about the adoption, only that she didn't know about her birth, which explained her unsurprised response when Luke told her that they were brother and sister in Return of the Jedi. Obi-Wan Kenobi also provided an explanation about how Leia gradually "lost" her Skywalker heritage.
Leia did meet Anakin's ghost and it end badly but that was before she forgave him. afterwards, once she understood what happened to Anakin, both Leia and Han held no grudes against him. they even named their kid after him.
