Definition of "barbarously"

However, he comforted himself by giving very particular accounts of how his mistress had been barbarously murdered by banditti; and the good city talked incessantly of the murder, till set right next day by the greater marvel of the escape.

1831, L[etitia] E[lizabeth] L[andon], chapter III, in Romance and Reality. […], volume III, London: Henry Colburn and Richard Bentley, […], page 54