Allendorf (Eder) () is a municipality which situated in the north west of Hesse, Germany. The municipality is within the Waldeck-Frankenberg district in a rural region called the upper Eder Valley. The Burgwald range is located west of Allendorf while the Breite Struth hills are in Allendorf's east. With regard to towns, Allendorf lies to the east of Frankenberg/Eder (12 km) and to the west of Battenberg (2.6 km) and Biedenkopf (21 km). In the north of Allendorf are Hallenberg (12 km), Winterberg (26 km), and Korbach (39 km). In its south is the university city Marburg (32 km). Allendorf is internationally known because of the heating company Viessmann, which has its headquarters in Allendorf/Eder. Moreover, the FC Ederbergland - an amalgamation of the football divisions of the SV Allendorf and the TSV Battenberg - successfully plays in the Hessian regional league. Allendorf is also attractive to tourists because of its half-timbered houses and the surrounding idyllic landscape. Geography Neighbouring communities Allendorf borders in the east on the town of Frankenberg, in the southeast on the community of Burgwald, and in the south and west on the town of Battenberg (all in Waldeck-Frankenberg). To its north is North Rhine-Westphalia (Bad Berleburg and Hallenberg). Constituent communities The municipality Allendorf/Eder consists of the following Ortsbezirke: Allendorf (first mentioned 1107) Battenfeld (first mentioned 778) Bromskirchen Haine (first mentioned 850) Neuludwigsdorf-Dachsloch-Seibelsbach Osterfeld (first mentioned 1774) Rennertehausen (first mentioned 1274) Somplar History Foundation In 1107, Allendorf had its first documentary mention as Count Kunimund's donation to the Imperial Abbey of Hersfeld. The community passed with the Amt of Battenberg first to the High Principality (Oberfürstentum) of Marburg in 1567, and then to Hesse-Darmstadt in 1623. In 1866, it became part of the Prussian district of Battenberg, in 1932 the Frankenberg district, and in 1974 the Waldeck-Frankenberg district. Since Hesse's municipal reforms in 1971, Allendorf (Eder) with the outlying centres of Battenfeld, Rennertehausen, Haine and Osterfeld form a community on the broad Eder plains. On 1 January 2023, the former municipality Bromskirchen was merged into Allendorf. Coat of Arms The coat of arms of Allendorf consists of two yellow outside-turned crescents over a silver six-pointed star on a blue background. This municipal coat of arms was conferred to Allendorf on 11 April 1967 by the interior ministry of the state Hesse. The adoption of it was recommended by Dr. Karl E. Demandt in his certificate from