Saxo Grammaticus,
The Danish History — Book IX
“ But the greater the hatred and contempt of England, the greater the loyal attachment of Denmark to the king. Thus while he stretched out his two hands to both provinces in his desire for sway, he gained one, but lost the lordship of the other irretrievably; for he never made any bold effort to regain it. So hard is it to keep a hold on very large empires.After this man his son HARALD came to be king of Denmark; he is half-forgotten by posterity, and lacks all record for famous deeds, because he rather preserved than extended the possessions of the realm. ”
