Despayre
a planet in the Horuz system, it was used as a penal colony by the Empire. The planet was covered in thick jungles that were fed by wide rivers and shallow seas. An abundance of lifeforms inhabited the jungles, and many were predacious. Captives in the penal colony were held in check with the threat of leaving them outside the colony's walls to fend for themselves. It here that the Empire found a willing, if unruly, source of labor for the construction of the first Death Star. The huge battle station was erected in orbit, without regards to the prisoners or the planet. The prisoners didn't realize it at the time, but the huge amount of scrap and debris that was created and left in orbit effectively sealed the planet off from outside contact, since no sane pilot would fly his ship through the chaf. When the prisoners became too unruly to effectively work on the Death Star, Tarkin went to Kashyyyk and captured some Wookiees to use as slaves. Once the battle station was complete, Tarkin ordered the new superlaser tested immediately. The Empire's first successful use of the weapon came when Tarkin fired on Despayre itself, killing all of the native life, the slave labor, and destroying the planet. Note that the Rebellion Era Sourcebook claims this planet was called Horuz.