“Nicolas is wishing everyone Happy Holidays,” read the message, accompanied by a rare picture of the baby prince looking happy and comfortable perched on Santa's lap.
Just two hours after it was published on the Princess' official Facebook page it had been shared hundreds of times and had received almost 17,000 likes.
The six-month-old royal was born just two days after his uncle Prince Carl Philip's wedding to Princess Sofia in June this year.
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Nicolas is wishing everyone Happy Holidays! (Photo Credit: Boggio Studios)
Posted by Princess Madeleine of Sweden on Tuesday, 22 December 2015
Madeleine, 33, her financier husband Chris O'Neill, 41, and their other child, one-year-old Princess Leonore, relocated to London earlier this year.
IN PICTURES: Princess Leonore through the years
The couple received a popularity boost earlier in December after they appeared together on 'Skavlan' – Sweden's most-watched talkshow – where they talked about their life in the UK.
2.5 million viewers watched the show, in a country just shy of 10 million citizens.
Madeleine, who has kept a lower profile than her siblings, has previously been criticized for not engaging with the media in the past and one radio editor made headlines in February when he wrote that “waving and smiling is not enough”.
Royal Christmas greetings are fast becoming an annual tradition in Sweden. Just last week Nicolas' older cousin Princess Estelle sent adorable holiday greetings in a video posted online.