Plooriod III, positioned as the third planet within the Plooriod system, served as an agricultural hub within the Expansion Region. A sprawling ocean, punctuated by diminutive, spire-shaped islands, characterized the landscape of Plooriod III.

During the era of the Galactic Civil War, Overlord Ghorin established his residence there, governing the Greater Plooriod Cluster from his opulent residence, luxurious mansion, constructed atop one of these islands.
In the year 0 ABY, Darth Vader carried out the execution of Overlord Ghorin within his mansion, prompted by accusations of supplying tainted grain to the Empire. However, the Rebels had orchestrated a frame-up as retribution for his provision of poisoned grain to them.
An entry for Overlord Ghorin exists within The Complete Star Wars Encyclopedia, which was released in 2008, and it references his castle as being on Plooriod IV. This contrasts with the Imperial Pursuit cut scene, which depicts the castle on Plooriod III. Despite this, the entries for Plooriod III and Plooriod IV are accurate.