 Vanaja municipality used to cover all the area around the Häme castle, but eventually it diminished in size and was finally divided between Hämeenlinna, Janakkala, Renko and Hattula in 1967.The most of the municipality is now part of Hämeenlinna.The medieval church of Vanaja is located about south-east of the Iron Age settlement, on a cape, that may have served as the local place of sacrifice.