Canon:
Han Solo (son-in-law)
Ben Solo (grandson)
Padmé Amidala (born Padmé Naberrie) is a fictional character in the Star Wars franchise, appearing in the prequel trilogy portrayed by actress Natalie Portman. She served as the Princess of Theed and later Queen of Naboo. After her reign, she became a senator in the Galactic Senate, an anti-war movement spokesperson, and co-founder of the opposition-faction that later emerged as the Rebel Alliance. She was secretly married to the Jedi Anakin Skywalker, and the biological mother of Luke Skywalker and Leia Organa, which makes her the mother-in-law of Han Solo, and the grandmother of Kylo Ren.
In initial drafts of the Star Wars story, Luke Skywalker's and Princess Leia's mother was not well developed. According to Dale Pollock, Luke Skywalker was originally Luke Starkiller and "Leia is the daughter of Owen Lars and his wife Beru and seems to be Luke's cousin – together they visit the grave of his mother, who perished with his father on a planet destroyed by the Death Star. In an interview, Lucas answered a question about the development of characters like Obi-Wan Kenobi, Luke, and Leia; their mother was not a factor:
The first [version] talked about a princess and an old general. The second version involved a father, his son, and his daughter; the daughter was the heroine of the film. Now the daughter has become Luke, Mark Hamill's character. There was also the story of two brothers where I transformed one of them into a sister. The older brother was imprisoned, and the young sister had to rescue him and bring him back to their dad.
Film historian Laurent Bouzereau reports that the second draft of the Return of the Jedi screenplay contained dialogue in which Obi-Wan Kenobi explains to Luke that he has a twin sister. She and their mother were "sent to the protection of friends in a distant system. The mother died shortly thereafter, and Luke's sister was adopted by Ben's friends, the governor of Alderaan and his wife." Lucas is quoted in Star Wars: The Annotated Scripts (1997) as saying: