This is the geste of the Northmen, always hostile to the Carlovingian dynasty.
For geste in the French is not merely the equivalent of gesta, "deeds."
Sa main est pose sur l'paule de son poux, geste ordinaire dans les groupes qui expriment la sparation de ceux qui s'aiment.
"famous deed, exploit; story, romance," c.1300, from Old French geste "action, exploit, romance, history (of celebrated people or actions)," from Latin gesta "actions, exploits, deeds, achievements," neuter plural of gestus, past participle of gerere "to carry on, wage, perform," of unknown origin. Cf. jest.