Southern Eislingen (Kleineislingen) became a possession Württemberg in 1492 while Northern Eislingen (Großeislingen) was annexed by thePrince-Bishopric of Würzburg. The period of municipal division brought about strife between localImperial Knights (Reichsritter) untilthe dissolution of theHoly Roman Empire in 1803. The events ofProtestant Reformation in Germany brought another third of Eislingen under the sovereignty of theDuchy of Württemberg and joint control with Würzburg with the rest of the city. In 1802, Würzburg was annexed by theElectorate of Bavaria. This, by extension, made Northern Eislingen a Bavarian possession until it was ceded in 1806 to the nowKingdom of Württemberg.Stuttgart assigned Eislingen toOberamt Göppingen [de], a district was reorganized in 1938 as Landkreis Göppingen. Northern and Southern Eislingen united into a single city, named Eislingen-Fils, in 1933. The town of Krummwälden was incorporated into Eislingen in 1935. The construction of theFils Valley Railway through Eislingen in 1845 began a period of industrialization and population expansion that continued afterWorld War II and would make Eislingen the most densely populated municipality in Göppingen's jurisdiction. Eislingen was declared a major town, orGroße Kreisstadt, in 2012.[3]
Eislingen has one borough (Stadtteile), Eislingen-Fils, and five villages: Eschenbäche, Etzberg, Krummwälden, Stumpenhof, and Täleshof. There are threeabandoned villages in the municipal area: Brunnenweiler, Ehrenstetten, and Hammertweil.[3]
Eislingen'scoat of arms isdividedparty per cross into four sections, twowhite and twoblue. In the upper half of theblazon is astag antler [de] that alternates between white and blue as it crosses into different fields. This pattern was the coat of arms of Northern Eislingen and it was re-adopted by the city of Eislingen when it merged with Southern Eislingen in 1933. The blue-whitetincture is a reference to the Prince-Bishopric of Würzburg, and the stag antler to Württemberg. The stag antler was black until 1955.[3]