Gersfeld
Town · Fulda
Fortress
Altenbrenda Castle was a lowland castle, now reduced to a burgstall, located in the Großer Garten, 1000 metres northeast of the present village of Unterweißenbrunn in the borough of Bischofsheim an der Rhön in the Lower Franconian county of Rhön-Grabfeld in Bavaria. The burgstall is situated near the sewage works for Unterweißenbrunn, in an area that is known today as the abandoned village (Wüstung) of Altenbrenda.
- Björn-Uwe Abels: Führer zu vor- und frühgeschichtlichen Denkmälern. Band 28: Bad Kissingen, Fränkische Saale, Grabfeld, Südliche Rhön. Verlag Philipp von Zabern, Mainz 1975, S. 99.