Primordial Patriarch is one of the Peak 9-Essences Paragons of the Vast Expanse. He is stronger than any of the Peak-9 Essences cultivators. His size is as large as an entire landmass and he looks like a gigantic head. Meng Hao got the sixth of the eight shards of the Copper Mirror from him (he got one from the Necropolis of Patriarch Vast Expanse and the other from Immortal Bai Wuchen). At the time, he invited Primordial Patriarch to become his subordinate but was refused and told "maybe if he was a Transcendor" .
After Transcending, Meng Hao paid a visit to Primordial Patriarch, not to make his subordinate as he doesn't have a need for anyone since he can kill anything under Transcendence with a simple thought. Instead, he went there to clear up the Karma with Primordial Patriarch as he had a feeling the Karma could be used against him.
He became Meng Hao's three strongest subordinates, alongside the Holy Termite and the Patriarch Godlizard.