Early in the Clone Wars, it was the site of a battle between the Separatist flagship Malevolence and several Republic warships. All of the Republic ships were destroyed, but several escape pods were jettisoned, although only one was found by Anakin Skywalker and his Padawan Ahsoka Tano in their search for survivors.
During the New Republic, its location fell in the then-named "Borderland Regions"—a militarized zone which separated New Republic space from the fragmented Empire. Economically, Abregado was significant, for it possessed an advanced manufacturing infrastructure which linked the system's planets. The goods produced were considered vital by Coruscant's restored democratic regime.
- Star Wars: The Clone Wars – "Ambush" (Appears in flashback(s))
- Star Wars: The Clone Wars – "Rising Malevolence"
- Star Wars: The Clone Wars – "Jedi Crash" (Appears in flashback(s))
- Star Wars: Empire at War
- Star Wars: Empire at War: Forces of Corruption
- Star Wars Galaxies: Trials of Obi-Wan (Mentioned only)
- Heir to the Empire (First appearance)
- Dark Force Rising
- The New Jedi Order: Dark Journey (Mentioned only)
- Heir to the Empire Sourcebook
- The Thrawn Trilogy Sourcebook
- Star Wars Encyclopedia
- The Essential Guide to Planets and Moons
- Coruscant and the Core Worlds
- Star Wars: Empire at War: Prima Official Game Guide
- Star Wars: Empire at War: Forces of Corruption Expansion: Prima Official Game Guide
- The Complete Star Wars Encyclopedia
- The Essential Atlas
- A Guide to the Star Wars Universe, Second Edition, Revised and Expanded