According to the legend, Grand Duke Gediminas was once hunting near the Vilnia River; tired after the successful hunt, he settled in for the night and dreamed of a huge Iron Wolf standing on top a hill and howling as strong and loud as a hundred wolves. ''Krivis'' (pagan priest) Lizdeika interpreted the dream that the Iron Wolf represents Vilnius Castles. Gediminas, obeying the will of gods, built the city and gave it the name Vilnius – from the stream of the Vilnia River.