Gretna Melkinata was Tenaran female and the daughter of Melkinat.

In 2364, Melkinata was responsible for giving Commander William Riker a tour of Tenara. Later she would assist Riker in surveying the planet to decide what Tenara needed help with. During the survey, Marcus Volcinius took her away and used a holodeck to trick Melkinata into thinking that her father and Captains Picard and Sejanus were supporting an attempt to reeducate the Tenaran people, causing her to turn against the Starfleet presence on Tenara. Eventually, Riker was able to show Melkinata how she had been tricked. (TNG novel: The Captains' Honor)

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