Who are Hannu and Princess Iolande?

hanuu_kirkhamHANNU REAL NAME: Hannu OCCUPATION: Green Lantern BASE OF OPERATIONS: Sector 2 HOMEWORLD: Ovacron 6 HEIGHT: 10' 0" WEIGHT: 720 lbs. EYES: White HAIR: None FIRST APPEARANCE: Green Lantern Vol. 3, #49 (February, 1994) AKA: Green Lantern BACKGROUND from the comic books:
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