Konghelle

Kungahälla (Norwegian: Konghelle, Old Norse: Konungahella) was a medieval Norwegian settlement in southern Bohuslän at a site which is located in Kungälv Municipality in Västra Götaland County in Sweden. It is the site of the former fortification at Ragnhildsholmen (Borgen pa Ragnhildsholmen).

The Norwegian Kings' sagas talk of Konghelle as a Viking Age settlement. According to Snorri Sturluson, Konghelle was the location of two important royal summits to conclude peace between Sweden and Norway. The first saw the two King Olafs, Olaf II of Norway of Norway and Olof Skötkonung of Sweden, agree to a peace treaty, ca 1020. The second was called the meeting of the three kings during which the three Scandinavian kings Inge I of Sweden, Magnus Barefoot of Norway and Eric Evergood of Denmark met in Kungahälla in 1101. When King Sigurd I Magnusson returned to Norway in 1111 following his crusade, he made his capital in Konghelle.

Konghelle appears in writings by the English chronicler, Orderic Vitalis, who named the city as one of six Norwegian civitates. During August 1135, the city was attacked and sacked by the Pomeranians. After the destruction, the city was moved to a site slightly to the west of the original site. Snorri Sturluson, writing a century later, said that Konghelle never completely recovered.

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