Gwendoline is an opera in two acts and three scenes by the French composer Emmanuel Chabrier, with a libretto by Catulle Mendès.

Suddenly the Saxon men return, victims of a surprise Danish raid, led by Harald.

Harald asks Armel to give his daughter in marriage – to which the Saxon elder consents while assuring his compatriots that revenge will come following the wedding feast.

A choral wedding procession is heard, while Armel plots with Aella and Erick to take the Danes' weapons and burn their ships.

The two lovers stand together embracing as a ray of light illuminates them, with the Danish ships alight in a ball of fire.