Is Danish King Who Gave Name to Bluetooth Buried in Poland?

A view of a 2014 stone with runic inscription in memory of Danish 10th century King Harald “Bluetooth” Gormsson, in Wolin, Poland, Saturday, July 30, 2022. (AP)
A view of a 2014 stone with runic inscription in memory of Danish 10th century King Harald “Bluetooth” Gormsson, in Wolin, Poland, Saturday, July 30, 2022. (AP)
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Is Danish King Who Gave Name to Bluetooth Buried in Poland?

A view of a 2014 stone with runic inscription in memory of Danish 10th century King Harald “Bluetooth” Gormsson, in Wolin, Poland, Saturday, July 30, 2022. (AP)
A view of a 2014 stone with runic inscription in memory of Danish 10th century King Harald “Bluetooth” Gormsson, in Wolin, Poland, Saturday, July 30, 2022. (AP)

More than 1,000 years after his death in what is now Poland, a European king whose nickname lives on through wireless technology is at the center of an archaeological dispute.

Chronicles from the Middle Ages say King Harald “Bluetooth” Gormsson of Denmark acquired his nickname courtesy of a tooth, probably dead, that looked bluish. One chronicle from the time also says the Viking king was buried in Roskilde, in Denmark, in the late 10th century.

But a Swedish archaeologist and a Polish researcher recently claimed in separate publications that they have pinpointed his most probable burial site in the village of Wiejkowo, in an area of northwestern Poland that had ties to the Vikings in Harald's times.

Marek Kryda, author of the book “Viking Poland,” told The Associated Press that a “pagan mound” which he claims he has located beneath Wiejkowo's 19th-century Roman Catholic church probably holds the king's remains. Kryda said geological satellite images available on a Polish government portal revealed a rotund shape that looked like a Viking burial mound.

But Swedish archaeologist Sven Rosborn, says Kryda is wrong because Harald, who converted from paganism to Christianity and founded churches in the area, must have received an appropriate grave somewhere in the churchyard. Wiejkowo's Church of The Immaculate Conception of the Blessed Virgin Mary stands atop a small round knoll.

Historians at the Danish National Museum in Copenhagen say they are familiar with the “suggestion” that Wiejkowo is Harald's burial place.

Rosborn detailed his research in the 2021 book “The Viking King's Golden Treasure" and Kryda challenged some of the Swede's findings in his own book published this year.

Harald, who died in 985, probably in Jomsborg — which is believed to be the Polish town of Wolin now — was one of the last Viking kings to rule over what is now Denmark, northern Germany, and parts of Sweden and Norway. He spread Christianity in his kingdom.

Swedish telecommunications company Ericsson named its Bluetooth wireless link technology after the king, reflecting how he united much of Scandinavia during his lifetime. The logo for the technology is designed from the Scandinavian runic letters for the king's initials, HB.

Rosborn, the former director of Sweden's Malmo City Museum, was spurred on his quest in 2014 when an 11-year-old girl sought his opinion about a small, soiled coin-like object with old-looking text that had been in her family's possession for decades.

Experts have determined that the cast gold disc that sparked Maja Sielski's curiosity dated from the 10th century. The Latin inscription on what is now known as the “Curmsun disc” says: “Harald Gormsson (Curmsun in Latin) king of Danes, Scania, Jomsborg, town Aldinburg."

Sielski's family, who moved to Sweden from Poland in 1986, said the disc came from a trove found in 1841 in a tomb underneath the Wiejkowo church, which replaced a medieval chapel.

The Sielski family came into the possession of the disc, along with the Wiejkowo parish archives that contained medieval parchment chronicles in Latin, in 1945 as the former German area was becoming part of Poland as a result of World War II.

A family member who knew Latin understood the value of the chronicles — which dated as far back as the 10th century — and translated some of them into Polish. They mention Harald, another fact linking the Wiejkowo church to him.

The nearby Baltic Sea island and town of Wolin cultivates the region's Viking history: it has a runic stone in honor of Harald Bluetooth and holds annual festivals of Slavs and Vikings.

Kryda says the Curmsun disc is “phenomenal” with its meaningful inscription and insists that it would be worth it to examine Wiejkowo as Harald's burial place, but there are no current plans for any excavations.



Hungary's Oldest Library is Fighting to Save Books from Beetle Infestation

Books are kept in hermetically sealed plastic sacks for disinfection at the Pannonhalma Archabbey's library in Pannonhalma, Hungary, Thursday, July 3, 2025, as a beetle infestation threatens its ancient collection. (AP Photo/Bela Szandelszky)
Books are kept in hermetically sealed plastic sacks for disinfection at the Pannonhalma Archabbey's library in Pannonhalma, Hungary, Thursday, July 3, 2025, as a beetle infestation threatens its ancient collection. (AP Photo/Bela Szandelszky)
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Hungary's Oldest Library is Fighting to Save Books from Beetle Infestation

Books are kept in hermetically sealed plastic sacks for disinfection at the Pannonhalma Archabbey's library in Pannonhalma, Hungary, Thursday, July 3, 2025, as a beetle infestation threatens its ancient collection. (AP Photo/Bela Szandelszky)
Books are kept in hermetically sealed plastic sacks for disinfection at the Pannonhalma Archabbey's library in Pannonhalma, Hungary, Thursday, July 3, 2025, as a beetle infestation threatens its ancient collection. (AP Photo/Bela Szandelszky)

Tens of thousands of centuries-old books are being pulled from the shelves of a medieval abbey in Hungary in an effort to save them from a beetle infestation that could wipe out centuries of history.

The 1,000-year-old Pannonhalma Archabbey is a sprawling Benedictine monastery that is one of Hungary's oldest centers of learning and a UNESCO World Heritage site.

Restoration workers are removing about 100,000 handbound books from their shelves and carefully placing them in crates, the start of a disinfection process that aims to kill the tiny beetles burrowed into them, The Associated Press reported.

The drugstore beetle, also known as the bread beetle, is often found among dried foodstuffs like grains, flour and spices. But they also are attracted to the gelatin and starch-based adhesives found in books.

They have been found in a section of the library housing around a quarter of the abbey's 400,000 volumes.

“This is an advanced insect infestation which has been detected in several parts of the library, so the entire collection is classified as infected and must be treated all at the same time,” said Zsófia Edit Hajdu, the chief restorer on the project. “We've never encountered such a degree of infection before.”

The beetle invasion was first detected during a routine library cleaning.

Employees noticed unusual layers of dust on the shelves and then saw that holes had been burrowed into some of the book spines. Upon opening the volumes, burrow holes could be seen in the paper where the beetles chewed through.

The abbey at Pannonhalma was founded in 996, four years before the establishment of the Kingdom of Hungary. Sitting upon a tall hill in northwestern Hungary, the abbey houses the country's oldest collection of books, as well as many of its earliest and most important written records.

For over 1,000 years, the abbey has been among the most prominent religious and cultural sites in Hungary and all of Central Europe, surviving centuries of wars and foreign incursions such as the Ottoman invasion and occupation of Hungary in the 16th century.

Ilona Ásványi, director of the Pannonhalma Archabbey library, said she is “humbled” by the historical and cultural treasures the collection holds whenever she enters.

“It is dizzying to think that there was a library here a thousand years ago, and that we are the keepers of the first book catalogue in Hungary,” she said.

Among the library’s most outstanding works are 19 codices, including a complete Bible from the 13th century. It also houses several hundred manuscripts predating the invention of the printing press in the mid-15th century and tens of thousands of books from the 16th century.

While the oldest and rarest prints and books are stored separately and have not been infected, Ásványi said any damage to the collection represents a blow to cultural, historical and religious heritage.

“When I see a book chewed up by a beetle or infected in any other way, I feel that no matter how many copies are published and how replaceable the book is, a piece of culture has been lost,” she said.

To kill the beetles, the crates of books are being placed into tall, hermetically sealed plastic sacks from which all oxygen is removed. After six weeks in the pure nitrogen environment, the abbey hopes all the beetles will be destroyed.

Before being reshelved, each book will be individually inspected and vacuumed. Any book damaged by the pests will be set aside for later restoration work.

The abbey, which hopes to reopen the library at the beginning of next year, believes the effects of climate change played a role in spurring the beetle infestation as average temperatures rise rapidly in Hungary.

Hajdu, the chief restorer, said higher temperatures have allowed the beetles to undergo several more development cycles annually than they could in cooler weather.

“Higher temperatures are favorable for the life of insects,” she said. “So far we've mostly dealt with mold damage in both depositories and in open collections. But now I think more and more insect infestations will appear due to global warming.”

The library’s director said life in a Benedictine abbey is governed by a set of rules in use for nearly 15 centuries, a code that obliges them to do everything possible to save its vast collection.

“It says in the Rule of Saint Benedict that all the property of the monastery should be considered as of the same value as the sacred vessel of the altar,” Ásványi said. “I feel the responsibility of what this preservation and conservation really means.”