But this did not bring him favor with his neighbor, as this meant she was abandoning a strategic marriage with a Wendish king, arranged by her brother. Olaf made enemies of his neighboring Viking ...
But the Scots didn’t quickly forget this humiliation. In 937, Constantine of the Scots, Owain of Strathclyde, and the Viking ...
He married his daughter to Olaf Guthfrithsson, the pagan king of Viking Dublin and persuaded Owein of Strathclyde, his relative, to support his cause. In 937 AD they invaded Aethelstan's England.