Luke and Leia eventually learned about their mother, Padmé Amidala. It was not until later in their lives, as they embarked on their own journeys and discovered their true parentage.
Throughout the original trilogy, Luke and Leia were unaware of their true parentage. They believed that their mother died shortly after their birth and that their father was a Jedi Knight named Anakin Skywalker. However, it was not until “Star Wars: Episode VI – Return of the Jedi” that their true parentage was revealed to them.
In “Return of the Jedi,” Luke confronts his father, Darth Vader, during a lightsaber duel. During their intense battle, Vader senses that Luke has a sister and threatens to turn her to the dark side. Luke, confused and desperate to protect his sister, asks Vader who she is. Vader reveals that she is none other than Princess Leia Organa, Luke’s close companion and ally in their fight against the Empire.
This revelation shocks Luke, but it also sparks a deep curiosity about his mother, Padmé. He seeks answers from his mentor, Obi-Wan Kenobi, and his father’s former master, Yoda. Obi-Wan confirms that Padmé was indeed Luke and Leia’s mother but tells Luke that she died of a broken heart after Vader turned to the dark side.
However, Luke’s quest for the truth doesn’t end there. In the years following the events of “Return of the Jedi,” Luke continues to delve into his family history. He eventually contacts his mother’s close friend, Pooja Naberrie, who is also Queen of Naboo. Pooja, knowing about Padmé’s secret marriage to Anakin Skywalker and the existence of Luke and Leia, shares the truth with Luke.
Leia, on the other hand, learns about her mother in a different way. In the novel “Bloodline” by Claudia Gray, set several years before the events of “The Force Awakens,” Leia discovers her true parentage when her political enemies expose her connection to Darth Vader. She is devastated by the revelation and struggles to come to terms with the fact that her father was once a Sith Lord.
So, in conclusion, Luke and Leia did eventually learn about their mother, Padmé Amidala. Luke discovers the truth during his confrontation with Vader in “Return of the Jedi,” while Leia discovers it through political turmoil and personal revelations in “Bloodline.” Their knowledge of Padmé’s identity further deepens their understanding of their own heritage and the larger story of the Skywalker family.