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The Grand Duke, 66, is self-isolating after testing positive for the virus, the Grand Ducal Court said. As he is currently experiencing only mild symptoms, he is set to continue to fulfil his role as head of state, albeit working remotely from the state palace in Berg in east Luxembourg.
A statement released by the court on Tuesday read: “Following a lateral flow test taken today which had tested positive, His Royal Highness the Grand Duke went into self-isolation in accordance with the health guidance in place.
“A PCR test done afterwards confirmed the result and the Head of State remains in isolation, in accordance with the regulations provided by the law modified on July 17, 2020 on the measures to tackle the COVID-19 pandemic.”
According to Luxembourg’s Covid rules, whoever tests positive for Covid must self-isolate at home for 10 days, counting from the day the symptoms arose.
If they are asymptomatic, the isolation must start from the day of their positive test. 
One of the key political events scheduled for this week in the country is the swearing-in of Luxembourg’s new finance, sports and social security ministers.
The ceremony will still go ahead on Wednesday, with the Grand Duke taking part in it via video link.
Grand Duke Henri succeeded his father Jean to the throne in 2000.
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The palace said in a statement: “The King and Queen, who are fully vaccinated with three injections, have mild symptoms and are feeling well, given the circumstances.
“The royal couple are isolating in their home in accordance with current regulation and infection tracking is undergoing.”
In March last year, the heir to the Swedish throne and her husband, Crown Princess Victoria and Crown Prince Daniel, had also tested positive for Covid and showed “slight symptoms”.
Another Scandinavian royal house directly hit by the pandemic has been the Danish one.
In December, Crown Princess Mary – wife of the country’s future King Frederik – self-isolated at the royal palace in Amalienborg following a positive test result.
Her elder son Prince Christian had contracted COVID-19 one year prior, following an outbreak at his school.
A few months later, they both spoke about the lingering effects the virus had on them.
The Prince of Wales said in June 2020 he had still not fully regained his smell and taste.
And Albert said in December that same year he had experienced episodes of fatigue for months after healing from Covid.
“It was really just an experience of physical fatigue, like the kind that comes on when you’ve done too much or when you’re coming off an illness.
“This virus stays with you quite a while.”
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