Esslingen am Neckar (Swabian: Esslenga am Neckor; until 16 October 1964 officially Eßlingen am Neckar) is a town in the Stuttgart Region of Baden-Württemberg in southern Germany, seat of the District of Esslingen as well as the largest town in the district. Within Baden-Württemberg it is the 11th largest city. It is located on the river Neckar, about southeast of Stuttgart city center. The regions surrounding the city of Esslingen are also mostly developed. Esslingen was a free imperial city for several centuries until it was annexed by Württemberg in 1802. The German Timber-Frame Road passes through the city. There is archaeological evidence that what is now the city of Esslingen was settled since the Neolithic period. Traces of human settlement found at the site of the city church date back to around 1000 B.C. In the 1st century AD the Esslingen region became part of the Roman Empire. During this period a Roman warehouse was located in the area of Oberesslingen. The nearest major Roman settlements and garrisons were at Cannstatt and Köngen. There are so far no findings from the early Alemanni period, which do exist on the Filder (uplands) nearby. There are findings in Rüdern which suggest a rich grave with eastern influence, including, for example, a set of three-winged spear heads. The ending "-ingen" indicates a group of people wherein a man named Azzilo, Hezzilo or Hetsilo was landlord and family patriarch played an influential role. This means the city's name originally meant: "the peoples of Azzilo". This name, for the first time documented in 856 as Ezlinga and 866 as Hetsilinga ended up becoming today's Esslingen. In the 6th century, the Alemanni were subjugated by the Merovingians under king Clovis I. But they still took over administrative tasks and formed a Duchy in Francia. In the 8th century they tried to become sovereign again. But the attempt failed near Cannstatt. The end of the Alemannian duchy was marked with the Council of Cannstatt. In an excavation by Günter Fehring, the remains of the Vitalis-Cella under the church St.