Template:DisestcatCountryDecade/doc

Usage
E.g.   for Category:1790s disestablishments in the Southern Netherlands

Note: if any of the parent categories should use a different country name, simply set up a category redirect at the default name. E.g. Category:Disestablishments in the Southern Netherlands by decade is redirected to Category:Disestablishments in Belgium by decade, and as a result, the 1790s example above will take the Belgium category as its parent, in place of the one that is redirected.