The sovereign ruler of the Grand Duchy of Luxembourg; at the time of the episode, Grand Duke Jean was the reigning monarch.
↗ Read on WikipediaMentioned once in Frasier's Curse.
Frasier's Curse
Season 6 · Episode 2 · S06E02
“I'm a model-slash-doctor-slash-daughter of the Duke of Luxembourg.”
From the same episode and category.
“He mumbled something about it being worse than the Dresden premiere of Schumann's Second Symphony.”
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“just spent the last hour listening to the Estee Lauder lady describing her bladder operation just so I could get a free…”
“when you called I was in the tub with a pint of Häagen-Daaz”