923 - Rollo and Ragnvald joined forces

England
Eadred,was born he was King of England from 26 May 946 – 23 November 955
France
Ragnvald attacked Aquitaine and Auvergne and then sailed his fleet to Normandy to join Rollo on a plundering expedition up the Seine probably acting on the French king Charles the simple’s request. The French king was in conflict with Herbert 2 of Vermandoise, whose territory were plundered.