The Skywalker family was a Force-sensitive Human bloodline whose first known member was Shmi Skywalker. The clan contributed members to both the Old and New Jedi Orders, as well as the ranks of Sith Lords. Through several generations, the Skywalker family remained extraordinarily prominent in galactic affairs, having a significant impact on major historical events for over 150 years.
Shmi Skywalker’s son, Anakin Skywalker, was conceived by the will of the Force and raised on Tatooine.
As a Jedi Padawan, Anakin married Padmé Amidala in 22 BBY. Three years later, Amidala gave birth to twins, Luke and Leia, passing away soon after. Due to Anakin’s fall to the dark side of the Force and transformation to Darth Vader, Luke was raised on Tatooine by his uncle and aunt, Owen and Beru Lars (Anakin’s step-brother and step-sister-in-law), while Leia was raised by Bail and Breha Organa on Alderaan.
Leia married Han Solo in 8 ABY and had three children: twins Jaina and Jacen in 9 ABY, and a younger son Anakin, who was named after his grandfather, in 10.5 ABY.
In 19 ABY, Luke married Mara Jade. Their son, Ben, who was named after Luke’s first mentor Obi-Wan «Ben» Kenobi, was born in 26.5 ABY. Ben would later become the ancestor of brothers Nat and Kol Skywalker, as well as Kol’s son Cade. Cade lived during 130 ABY and was the last surviving Skywalker of his time, his uncle having abandoned the famous name and living as «Bantha» Rawk. Nat married the Kiffar Jedi Droo Rawk and adopted her biological daughter, Ahnah, and two other children Skeeto and Micah.
The droids C-3PO and R2-D2 were both the creation or property of Anakin and Padmé respectively. Eventually the droids would later fall into the hands of their children. R2-D2 went under the possession of Luke Skywalker whereas C-3PO mostly remained with Leia Organa Solo and her family.
The family was unaware that they were related to the Naberrie family of Naboo until 36 ABY, when Luke discovered a group of holograms within R2-D2 dealing with the final days of his mother’s life. Soon after, Leia traveled to Naboo to meet with Pooja Naberrie and revealed their relationship.