 Northwards, when crossing the border to the Heilbronn district, starting in the neighboring town of Beilstein, the buses are operated by the Heilbronner Hohenloher Haller Nahverkehr (HNV), giving access to the city of Heilbronn.Oberstenfeld originated in the 7th or 8th century, and belonged to the Lichtenberg castle residing above the town.The Oberstenfeld nunnery was founded in 1016 CE, its patronage was taken over in 1357 CE when the count of Lichtenberg sold the town to the dukes of Württemberg.