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Montgomeryshire - Historic County of Wales

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Montgomeryshire (Sir Drefaldwyn) - Historic County of Wales

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Succeeded by Powys

Work in Progress

For Historical information about Montgomeryshire visit Historic Montgomeryshire Link to follow - including connections to Historical figures, Gentry and political people connected with Montgomeryshire.

For Information about research in the County and Families Researched on Geni (Including Emigrants) go to Montgomeryshire - Family Heads

For Famous or Notable People from Montgomeryshire visit Montgomeryshire - Famous People

Known in Welsh as Sir Drefaldwyn.

An inland County, bounded N. by Denbighshire, E. and SE. by Shropshire, S. by Radnorshire, SW by Cardiganshire and W. and NW. by Merioneth.

Area 510,111 acres / 1,955.94 square km.

Admin HQ. Montgomery

Chapman County Code MGY

Population 59,474 according to the 2001 census - ( 52 000 at

Motto 'Powys Paradwys Cymru' - Powys paradise of Wales.

The county flower of Montgomeryshire is Spergula arvensis (also called "corn spurrey")

The County is almost wholly mountainous, although there are some fertile valleys on the Shropshire side. The highest point is Mole Sych (2,713 ft). The principal rivers are the Severn and its affluent, the Dovey. Lake Vyrnwy is a reservoir supplying Liverpool. The main towns are Llanfyllin, Machynlleth, Montgomery, Newtown and Welshpool. The main industries are agriculture (mainly hill farming) and tourism.

Places of special interest:

  • Bryn Tail Lead Mine Buildings (SN9186);
  • Centre for Alternative Technology,
  • Machynlleth (SH7504);
  • Dolforwyn Castle (SO1595);
  • Montgomery Castle (SO2296);
  • Powis Castle, Welshpool (SJ2106);
  • Trefeglwys Tumuli (SN8792).

See Table of Welsh Place names (Table listing where places are in Current [Post 1974/1996] Welsh Counties/Historic Counties


  • Llanfyllin
  • Cyfeiliog
  • Caereinion
  • Ystrad Marchell
  • Llanidloes
  • Kerry/Montgomery

The main towns

  • Machynlleth,
  • Llanidloes,
  • Montgomery,
  • Newtown
  • Welshpool.

Parish Map


from The Phillimore Atlas and Index of Parish Registers 1984.

For full size image see Central Wales - Phillimore - open the full view and use the magnify tool.