838 - Horik demanded Friesland

Early Frankish shield
Low Countries
A viking fleet was destroyed by a storm and an emissary from King
Horik demanded that Louis the pious should give up Friesland and Wagria, but Louis the pious denied Horik`s demands, he was not that weak yet all though the Vikings had a victory in 837 near Walcheren.

England
At the Battle of Hingston Down, Egbert of the West Saxons defeated the Danish and their West Welsh allies from Cornwall.