Wiesendangen is a municipality in the district of Winterthur in the canton of Zürich in Switzerland. On 1 January 2014 the former municipality of Bertschikon merged into the municipality of Wiesendangen. At the same time the Community Identification Number changed from 0229 to 0298HistoryWiesendangen municipality includes the former villages, hamlets or municipalities of: Wiesendangen, Attikon, Wallikon, Menzengrüt, Buch, Bertschikon, Gundetswil, Kefikon, Liebensberg, Stegen, Gündlikon and Zünikon. It is located on the site of Roman estates built in the 2nd and 3rd centuries along the road between Oberwinterthur and Pfyn. The area was acquired by St. Gallen Abbey in 804. Wiesendangen is first mentioned in this context, as Wisuntwangas . Bertschikon is first mentioned in 1255 as Bersinkon. The village of Gündlikon may be mentioned in 774 as Cundilinchova though the identification is doubtful; it is mentioned in 1162 as Gundilinchova.A tower house built in the early 12th century was inhabited by ministeriales of the House of Kyburg who called themselves von Wiesendangen or von Frauenfeld, as the acted as reeves in Frauenfeld. The manor was a fief of the bishop of Constance, given to the Hohenlandenberg family in 1472. High justice had already passed to Zürich along with the Kyburg possessions in 1452, low justice eventually passed to Zürich as well, in 1587.