According to Snorri Sturluson's medieval  classic, Heimskringla, the Danish king, Harald Bluetooth, converted to Christianity in  the late 10th century, although it is possible he was baptized earlier, as interpretations of the  events differ.

根据 Snorri Sturluson 的中世纪经典著作 Heimskringla，丹麦国王 Harald Bluetooth 在 10 世纪后期皈依了基督教，尽管他可能更早受洗，因为对事件的解释各不相同。