On what date did XXX end?
Battle of Clausen
The Battle of Clausen (or Klausen) was fought on 20 October 1735 near the town of Klausen (usually spelled in histories with 'C' instead of 'K'), which was then in the Electorate of Trier and part of the Holy Roman Empire, and is now in the German state of Rhineland-Palatinate.
20 October 1735