Matthew Vaughan-Davies, 1st Baron Ystwyth

Having actively supported the sitting member, William Bowen Rowlands at the 1892 General Election it soon became known that Davies was interested in the Liberal nomination. This was strongly resisted by leading figures in the local Liberal Association, such as the Aberaeron merchant J.M. Howell who suspected Davies's commitment to Liberal policies, a suspicion later borne out by embarrassing evidence of his behaviour towards tenants on his own Tanybwlch estate.

However, Davies was eventually chosen as candidate defeating Wynford Phillips by 160 votes to 111 at a delegate conference.[5] Kenneth O. Morgan has argued that this was due to his support among rural areas where electors 'resented the social climbing of the Aberystwyth bourgeoisie;.[6] It was reported at the time that the influence of the Aberystwyth element within the Liberal Association had been resented ever since the Cardiganshire County Council was formed in 1889.[7] Vaughan Davies was regarded as an outsider who was also sternly opposed by the Aberystwyth-based Cambrian News, who stated that his selection was 'a more complete defeat of Liberalism than if Mr Harford, the Conservative candidate, had been placed at the head of the poll by a large majority'.[8] There is no doubt that his selection created divisions in the Liberal ranks.[7] Some compared the extent of the divisions with the position in 1886 when David Davies had defected to the Liberal Unionists.[8] Nevertheless, a closer examination of the way delegates from individual wards voted at the selection conference indicates that both candidates drew support from rural wards and while the nineteen delegates from Aberystwyth voted for Phillips the eleven delegates from the county town of Cardigan supported Davies.[5]

He was elected at the 1895 General Election. Although his majority fell by 800 votes from that recorded by Bowen Rowlands in 1892, it remained a comfortable victory over J.C. Harford of Falcondale, one of the ablest local landlords in the county.

Five years later, against the same opponent, his majority was reduced.

Thereafter, Vaughan Davies was comfortably returned at each election but the vitality of the Liberal Association was in serious decline, and by 1914 it was heavily dependent on Vaughan Davies's role as treasurer to keep it going. In the meantime, Vaughan Davies remained on poor terms with prominent Liberals, including John Gibson of the Cambrian News.[10]

In December 1910, he was returned unopposed at the second general election of that year. He sought re-election at the 1918 General election and was the endorsed candidate of Lloyd George's Government. He faced no opponent, so was returned unopposed.[11] He was the oldest member of the House of Commons between 1918 and 1921.

He held the seat until 1921 when he was elevated to the peerage as Baron Ystwyth, of Tan-y-Bwlch in the County of Cardigan, in the 1921 New Year Honours.[12] As Lord Ystwyth had no children the title became extinct on his death in August 1935, aged 94.