[[Image:WalesRadnorshireTrad.png|thumb|200px]] '''Radnorshire''', (Welsh: '''Sir Faesyfed''' or '''Maesyfed''') was one of thirteen historic counties of Wales.
It was bounded to the north by [[
Montgomeryshire, Wales|Montgomeryshire]], to the south by [[ Breconshire, Wales|Breconshire]], to the west by [[ Cardiganshire, Wales|Cardiganshire]] and to the east by the English counties of [[Shropshire]] and [[Herefordshire]]
The county was created following the Act of Union of 1535, between Wales and England. The county town was initially '''New Radnor''' (Welsh: '''Maesyfed''') but this was later replaced by '''Presteigne''' (Welsh: '''Llanandras'''). The '''administrative county of Radnorshire''', with an elected county council, was created in '''1889''' by the Local Government Act 1888. The county was governed by an elected county council, who took over the functions of the Quarter Sessions courts. '''Llandrindod Wells''' (Welsh: '''Llandrindod''') became the new county town. The county was mainly rural and agricultural and has always been the poorest in Wales.