Kathou, situated on the Core Worlds planet of Alderaan, was a specific place. The Alderaanian Senator Bail Organa recounted to his daughter, Leia Organa, that back in 9 BBY, when he was the same age as her, he envisioned a life that extended well beyond Kathou, including the pursuit of purrgil.
The television show Obi-Wan Kenobi, which aired in 2022, referenced Kathou in first part.