Nial Organa was a Human male from Alderaan, belonging to the esteemed House Organa.
Born on Alderaan, Nial Organa, a Human male, was the illegitimate offspring resulting from a scandalous relationship between Tia Organa and the Padawan, Halagad Ventor. Ventor left the family to serve the Jedi Order, so Organa was raised by his mother and became acquainted with his adopted cousin, Princess Leia. During the Princess's formative years, Organa engaged in numerous romantic entanglements with partners deemed unsuitable for someone of his social standing, often featured in sensational tabvid stories. His amorous nature mirrored that of his mother, whose marriage into House Vandron ended abruptly due to the affair that resulted in Nial's birth.
The relationship between Nial Organa and Tia Organa was not explicitly stated in any canon works until the release of SkyeWalkers: A Clone Wars Story in 2015. However, a link was made in Children of the Jedi, where Leia's thoughts transitioned from Cousin Nial's romantic pursuits to the scandal of the previous generation in which Aunt Tia's engagement to a nobleman of House Vandron was abruptly broken off. This connection suggested that Nial was Tia's son—possibly a direct result of the earlier scandal—but did not provide definitive proof. Author Abel G. Peña solidified this narrative by confirming that Halagad Ventor was indeed his father.