Townships in Montgomeryshire are divisions of the ancient parishes of the county of Montgomery. In 1539 townships were grouped together in Hundreds. The Townships which were recognised were based on the older Welsh divisions of Tref, or plural Trefi, which had formed the Welsh administrative districts of the Commote. Not all of the former Tref were recognised and some smaller trefi were amalgamated into larger townships. A township was allocated to a particular parish, but townships were recognised as administrative districts, rather than the parishes.