Nothing has been revealed about Imperion's past. He was first seen when he came to Earth as the leader of the Keep to harvest the Nu-genes on Earth . Imperion was dethroned when he was bested by Quantum in battle, after which he left with the Keep and his new master Quantum .
Rob Liefeld's part of the Image universe
Extreme Destroyer Prologue (vol. 1) #1 (1996)
Country of origin:
1: Extreme Destroyer Prologue (vol. 1) #1
2: Extreme Destroyer Epilogue (vol. 1) #1