The diet of the Old Swiss Confederacy and, until 1848, of the Swiss cantons: a meeting of cantonal envoys bound by instructions from their governments.
In more detail
The Tagsatzung developed in the fifteenth century as the cantons' common forum. It met several times a year in changing towns, administered jointly ruled territories, received foreign envoys and mediated disputes. Envoys could not commit their cantons beyond their instructions, and majority decisions did not bind cantons on matters of their own sovereignty. After the Reformation, Catholic and Protestant cantons also held separate diets. The federal constitution of 1848 replaced the Tagsatzung with the Federal Assembly.