found: Bezirksamt Viechtach, 1926.
found: GEOnet Sept. 16, 2004(Viechtach, Germany; PPL, 49°04ʹN, 12°53ʹE)
found: Columbia gaz. of the world(Viechtach; town, Lower Bavaria, Germany)
found: Das Penzkoferhaus in Viechtach, 2012:title page (Viechtach) pages 14-15 (earliest documentary mention of Viechtach as a market town dates from 1272)
found: German Wikipedia, June 9, 2014:"Viechtach" (Viechtach; Faida, in Bavarian dialect; a city in the lower Bavarian Kreis Regen and registered as a climatic spa; first mentioned 1104 when the count of Bogen Friedrich III. assigned farmland to the Koster Oberalteich; 1242 came into possession by the Wittelsbach; received rights as a market town late in the 13th century)