As Ladoga did not possess strong fortifications in the early medieval period , it was Duboviki that shielded Novgorod from potential attacks by the Norse raiders .
Recent research established Duboviki as key to understanding the earliest fortifications of Holmgard ( Novgorod ) .
As Ladoga did not possess strong fortifications in the early medieval period , it was Duboviki that shielded Novgorod from potential attacks by the Norse raiders .
Recent research established Duboviki as key to understanding the earliest fortifications of Holmgard ( Novgorod ) .