According to a medieval chronicle, King Harald “Bluetooth” Gormsson of Denmark, who died 1,000 years ago, was buried in Roskilde, Denmark in the late 10th century. But a Swedish archaeologist and a Polish researcher recently claimed in separate publications that they had identified his most likely burial site as the village of Wiejkowo, in an area of ​​northwestern Poland that had links to Vikings in the Bluetooth era. Marek Kryda, author of the book Viking Poland, told The Associated Press that a “pagan mound” he claims to have spotted under Wiejkowo’s 19th-century Roman Catholic church likely contains the king’s remains. He said geological satellite images available on a Polish government portal reveal a round shape under the Church of the Immaculate Conception that looks like a Viking mound. But Swedish archaeologist Sven Rosborn says Mr Kryda is wrong because Bluetooth, who converted from paganism to Christianity and founded churches in the area, must have been buried in a proper grave somewhere in the churchyard. Bluetooth died in 985, probably in Jomsborg – now believed to be the Polish town of Wolin – located near Wiejkowo. He was given his nickname because one of his teeth, which was probably decayed, appeared blue, according to chronicles of the time. He was one of the last Viking kings who ruled what is now Denmark, northern Germany and parts of Sweden and Norway and spread Christianity throughout his realm. Swedish telecommunications company Ericsson named its Bluetooth wireless technology after the king to reflect how it united much of Scandinavia during his reign. The tech logo features the Norse runic letters for the king’s initials, HB. Mr Rosborn presented his research in his 2021 book The Viking King’s Golden Treasure, and Mr Kryda disputed some of his findings in his own book published this year. Mr Rosborn, a former director of Sweden’s Malmo City Museum, began his search in 2014 when an 11-year-old girl asked his opinion on a small coin-like object with an old text that had been in her family’s possession for decades. Image: The 10th century Curmsun Gold Disc bearing the name of the Danish king Harald ‘Bluetooth’ Gormsson. Photo: AP Experts identified the cast gold “Curmsun disc” as dating from the 10th century, with a Latin inscription that read: “Harald Gormsson (Curmsun in Latin) king of the Danes, Scania, Jomsborg, city of Aldinburg.” The family of Maja Sielski, who moved to Sweden from Poland in 1986, said the disc came from a vault found in 1841 in a grave under Wiejkowo Church, which replaced the medieval chapel. The Cielski family was in possession of the disc together with the parish archives of Wiejkowo, which contained medieval parchment chronicles in Latin, in 1945. A family member who knew Latin translated some of the chronicles, dating as far back as the 10th century, into Polish to find that they mention Bluetooth – another fact linking him to the Wiejkowo church. Mr Kryda said the Curmsun disc was “phenomenal” with its meaningful inscription and said it would be worth considering Wiejkowo as a Bluetooth burial site. However, there are currently no plans for excavation.