Tholsel was a name traditionally used for a local municipal and administrative building used to collect tolls and taxes and to administer trade and other documents in Irish towns and cities. It was at one stage one of the most important secular buildings in Ireland's town and cities and the level of importance was reflected in the prominence and size of these buildings as well as the expensive materials and architectural techniques used. Some historic tholsels still exist, notably The Tholsel, Kilkenny. Towards the end of the 18th century the term tholsel was typically swapped for Market House with many of the administrative functions of the original tholsel transferring to another dedicated local council or government building such as a court or sessions house.