Vidugavia was a prince of the Northmen, self-styled "King of Rhovanion" who ruled the lands between Mirkwood and the River Running.
He was the ally of Gondor's King Rómendacil II, and helped him to his victory against the Easterlings in Third Age 1248.
He also received Rómendacil's son Valacar into his court as ambassador. Valacar would eventually wed Vidugavia's own daughter, Vidumavi.
Vidugavia was apparently the father of other children, since he was also an ancestor of Marhari.
Widugawja is a Gothic name meaning 'Wood-lord'. In Germanic literature, it has been a name used for Wayland Smith.