Ehningen is a town in the district of Böblingen in Baden-Württemberg in Germany.GeographyEhningen is in Korngäu, on the northwestern edge of Schönbuch nature park. Historically, the city of Ehningen was located north of the Würm, but the Würm now flows through the middle of the modern town. The second major watercourse is the Ehningen Krebsbach, which flows south-west of the old village in the Würm.DistrictsEhningen includes the village of Ehningen, the hamlet of Mauren, and the house and the mill towns of Hoingen, Rainmulin, Sulz and Haldenölmühle.MaurenMauren's Schlossgut, or estate, is located on the border between the Upper Gäu and the Schönbuch in the Würm river valley. In all probability, the name Mauren (Mason) originated from the word wall (Mauer). This refers to a former Roman estate which lies near present-day Mauren in Würmtal.Mauren was first mentioned in 1320, and was then a fief of Württemberg. It was incorporated into Ehningen in 1851. Over the centuries, Mauren changed hands frequently. The Mauren castle was built in 1617 by Heinrich Schickard. In 1943 it was bombed by a British air raid, when due to fog, it was confused with nearby Boeblingen. The outer walls of the ground floor are still are standing, and the vaulted cellar under the ground floor also remains. In 2005, two houses were built on steel pillars directly over the outer walls of the ruins.HistoryThe first documented mention of Ehningen can be dated to 1185, when the knight Albertus de Ondingin purchased a manor in Herrenberg. Albertus de Ondingin was a member of the local nobility, and in all likelihood was a vassal of the Count Calw.There is ample evidence of the continued use of this countryside in prehistoric times, however. For example, a Neolithic arrowhead (3000-1800 BC) and a Bronze Age grave mound (1800-1200 BC) were found locally. A Celtic four-sided earthworm was once located just south of present-day Ehningen, although it is overbuilt now.