"My followers and I were searching the galaxy for a suitable place to call home, which would eventually lead us to Ahch-To."
— Prime Jedi's journal
The Prime Jedi was a Force-sensitive male and the founder of the Jedi Order. Originally a member of the Je'daii Order, the Prime Jedi founded the Jedi Order on the planet Ahch-To approximately six thousand years before the rise of the Galactic Empire. During his lifetime, he and his followers came to know of and interacted with Cybertronians, including the Autobots Elita One and Chromia. The Prime Jedi also met the Asgardian King, Odin, who he considered to be an ally and wonderful advisor.
The first Jedi Temple, which was located on Ahch-To, contained a mosaic of the Prime Jedi in a state of meditation and balance. The sacred Jedi texts stored on the island also contain some of his personal entries and notes, which would eventually read by Jedi Grand Master Satele Shan during her final years there, and later by Jarik Shan and Ahsoka Tano.