Moraband

Moraband was a planet was the ancient homeworld of the Sith Order. A world of mountains and red sands, Moraband was abandoned after widespread devastation during numerous wars. It was the site of the Valley of the Dark Lords, a valley filled with tombs for ancient Sith Lords such as Darth Bane. During the Clone Wars, the Jedi Master Yoda traveled to Moraband on a spiritual pilgrimage, and faced a number of spiritual trials and the power of the dark side of the Force.

Behind the scenes
In the original Legends continuity, Moraband was named Korriban, and was the homeworld of the Sith species. It was first introduced in the new Star Wars canon in "Sacrifice," an episode of the Star Wars: The Clone Wars television series. George Lucas preferred the name "Moraband" to Korriban during story development, leading canon material to refer to the planet as Moraband.