Leia Organa Solo (born Leia Amidala Skywalker), a Force-sensitive Human female was at various stages of her life, a politician, revolutionary, and Jedi Knight of the New Jedi Order. The daughter of Jedi Knight Anakin Skywalker and Senator Padmé Amidala of Naboo, Leia was the younger twin sister of Luke Skywalker, and, shortly after her birth, she became the adopted daughter of Bail Organa and Queen Breha of Alderaan, making her a Princess of Alderaan. An accomplished Senator, Leia Organa was most famous for her strong leadership during the Galactic Civil War and other subsequent galactic conflicts, making her one of the galaxy's greatest heroes. Later she married Han Solo, and became the mother of their three children: Jaina, Jacen, and Anakin Solo. Around the start of the Swarm War, Leia unknowingly became a grandmother through Jacen's daughter Allana.

She had a forceful personality and bright intellect, having accomplished much in her youth: she was a strong proponent for the Rebel Alliance, the youngest Senator ever of the Galactic Empire at eighteen standard years of age, and a member of the Royal Family of Alderaan. Years later, she was instrumental in the creation of the New Republic, and was elected to the position of Minister of State, before becoming Chief of State, serving twice in that office.

Due to her powerful Force heritage, Leia, following her family's legacy, became a Jedi Knight in the New Jedi Order. She was partially trained by her brother Luke and later by Jedi Master Saba Sebatyne, who declared her a fully trained Knight at the end of the Swarm War. This training would serve her well as the galaxy teetered on the edge of collapse into civil war once more during the Second Galactic Civil War, although it complicated her allegiance. During this conflict, Leia's son Jacen turned to the dark side of the Force, becoming the Sith Lord Darth Caedus. Leia and Han became determined to destroy Caedus, feeling that their son was already dead. However, it was their daughter Jaina who ended his life in a lightsaber duel that also concluded the war.

In the aftermath of Caedus' death, the Solos became the guardians of their granddaughter Allana, at the behest of her mother, Tenel Ka of Hapes, and remained two of the galaxy's most important figures, standing with the Jedi Order amidst the tensions that arose between it and the government of Chief of State Natasi Daala.