Tulak was a male Advozse Warlord. He conquered Koba three centuries before the Battle of Yavin, imprisoning the native Kobans. Jedi Knight Polvin Kut and his Padawan, Yaddle went there to stop him. However, Tulak was more than ready and when the two Jedi arrived, he ambushed them. His forces killed Kut and captured Yaddle. They threw her in a dungeon for a century.
By the time Yaddle escaped, Tulak had died, and his son, Kalut was the new Warlord.
- Power of the Jedi Sourcebook
- The Official Star Wars Fact File 105 (YAD1, Yaddle)
- The Complete Star Wars Encyclopedia, Vol. II, p. 347 ("Yaddle")