Memnon

In blackest day, in brightest night, beware your fears made into light. Let those who try to stop what's wrong, burn like my power--F-Klak's might! In the far future of the Original Universe, Memnon was a soldier of F-Klak's army who was promoted to the status of Yellow Lantern.

History
In the far future, in an unspecified point of the universe, F-Klak and Striborg gathered Memnon, Agga, and Peptis, three of F-Klak's best soldiers. F-Klak told the three soldiers that, due to their loyalty to him, each of them would be made a Dark Lantern and could choose which of the Dark Lantern Corps to join. When it was Memnon's turn to speak, he/she recited the Yellow Lantern oath, so F-Klak enrolled him/her in the Yellow Lantern Corps.