Saxo Grammaticus,
The Danish History — Book IX
“ Thus he stripped the other of his throne, but himself of all his virtues, and cast all manliness out of his heart, when he made war upon a cradle: for where covetousness and ambition flamed, love of kindred could find no place. But this brutality was requited by the wrath of a divine vengeance. For the war between this man and Gudorm, the son of Harald, ended suddenly with such slaughter that they were both slain, with numberless others; and the royal stock of the Danes, now worn out by the most terrible massacres, was reduced to the only son of the above Siward. ”
