Radnorshire was created in 1542 as a constituency of the House of Commons of the Parliament of England then of the Parliament of Great Britain from 1707 to 1800 and of the Parliament of the United Kingdom from 1801 to 1918. It elected one knight of the shire (MP) by the first past the post system. By 1918, having too small a relative population the area was combined with that of Breconshire to form Brecon and Radnor constituency.

Members of Parliament

MPs 1542–1604

MPs 1604–1918

Election results

Elections in the 1830s

Elections in the 1840s

Wilkins' death caused a by-election.

Elections in the 1850s

Elections in the 1860s

Walsh was elevated to the peerage, becoming 1st Baron Ormathwaite and causing a by-election.

Elections in the 1870s

Elections in the 1880s

Elections in the 1890s

Elections in the 1900s

Elections in the 1910s

General Election 1914–15: Another General Election was required to take place before the end of 1915. The political parties had been making preparations for an election to take place and by July 1914, the following candidates had been selected;

Sources