Gel Marcolf was a male Force-sensitive Mirialan who was installed as the reeve of the tree-city of Quolas by the Jedi Knight Suljo Warde. The keeper of one of Warde's three kyber crystals, Warde had promised to return to Arbooine and complete Marcolf's training. When Warde never returned and the Jedi Order was destroyed at the end of the Clone Wars, Marcolf's good nature soured and he became a cruel overlord of the city which he governed.