Trícha cét

The tríocha céad, also known as trícha cét, meaning "thirty hundreds", was a unit of land-holding in eleventh and twelfth century Ireland.[1][2] The term appears to relate to the number of troops an area could raise.[1]


Described as a "spatial unit of royal tenure, taxation, local government, and military levy", the trícha cét largely corresponded to a local petty kingdom ruled by a petty king.[3] A minority, however, were ruled by a taisaig (leader) or an airríg (governor), appointed by a superior kings.[3]

In the province of Ulster, a tríocha céad was subdivided into roughly twenty-eight baile biadhtaigh (ballybetagh), meaning "lands of a food-provider", and around 463 seisrigh/seisreachs, meaning "six-horse plough-teams".[1]

During the eleventh century, the system became established across the island, a refinement on a pre-existing system.[3]

See alsoEdit


  1. ^ a b c Place Names NI - Land units
  2. ^ MacCotter, Paul; Medieval Ireland: Territorial, Political and Economic Divisions, pg. 13. Four Courts Press, 2008. ISBN 978-1-84682-098-4
  3. ^ a b c ibid pg. 22

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