Pre-Cyborg General Grievous 36 30th.
Source: Expanded Universe (Star Wars: Visionaries)
A fearless warrior, Grievous is one of the greatest military soldiers of his people. As is the Kaleesh custom, he wears, during combat, a bone mask passed down to him from his ancestors. His outstanding military record catches the attention of the Banking Clan, who want to use his expertise for their growing Separatist movement.