The Loire and The Seine
Settled back in Brittany, Hastein allied himself with Salomon, King of Brittany against the Franks in 866, and as part of a Viking-Breton army he killed Robert the Strong at the Battle of Brissarthe near Châteauneuf-sur-Sarthe. In 867 he went on to ravage Bourges and a year later attacked Orléans. Peace lasted until spring 872 when the Viking fleet sailed up the Maine and occupied Angers, which led to a siege by the Frankish king Charles the Bald and a peace being agreed in October 873.
Hastein remained in the Loire country until 882, when he was finally expelled by the Charles and then relocated his army north to the Seine. There he stayed until the Franks besieged Paris and his territory in the Picardy was threatened. It was at this point he became one of many experienced Vikings to look to England for riches and plunder.
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