During the legendary Clone Wars, General Grievous served as the leader of the Separatist droid army. Grievous was a cunning warrior who led the Separatists to many stunning victories over the Jedi Knights and the Old Republic military. Grievous became known as the worst enemy the Jedi had ever faced in battle. Many brave Jedi perished at the wrong end of Grievous' light sabers.

Grievous killed these Jedi: Lipi Doucet, Marq Trendi, Pocer Yalerdis, Whu-Si Landris and a couple other Jedi. Grievous was defeated by Nebar Foxis, Jaas Hartin and Mnanr Tis. Grievous had to retreat from these three Jedi to save his life.