The Grandeel system existed within the Trailing Sectors of the Expansion Region, specifically as a component of the Tynna sector. Notably, it housed the Grandeel fish farms.
This system of Grandeel was first presented in the Online Companion found on StarWars.com for the 2009 reference work The Essential Atlas. This book was created by Jason Fry together with Daniel Wallace, and it situated the system in grid coordinate N-14.