Peter John Mitchell Thomas, Baron Thomas of Gwydir, PC, QC (31 July 1920 – 4 February 2008) was a British Conservative politician. He was the first Welshman to become Chairman of the Conservative Party, serving from 1970 to 1972, and the first Conservative to serve as Secretary of State for Wales, holding that office from 1970 to 1974.
He was bilingual in Welsh and English, and took an active part in the Gorsedd, attending Eisteddfodau under the bardic name Pedr Conwy (Welsh: Peter from Conway).
He married Tessa Dean in 1947. She was the daughter of actor, film, and theatrical producer Basil Dean and his wife, Lady Mercy Greville. His wife died in 1985, and he outlived both of their two sons. He was survived by his two daughters upon his death in February 2008 at the age of 87.
During the whole of Edward Heath's premiership, he held the position of Secretary of State for Wales. He was Secretary of State during a period of violent activism by proponents of the Welsh language, including bombings and a campaign by the Cymdeithas yr Iaith Gymraeg (Welsh Language Society) to remove English road signs. In February 1971, paralleling plans to reorganise local government in England, Thomas announced the plans to replace the existing 181 local councils with 7 new county councils counties and 36 district councils. An extra county council was added later, for Cardiff. Thomas also served as Chairman of the Conservative Party between 1970 and 1972.
Coat of arms of Peter Thomas, Baron Thomas of Gwydir
Crest
A grassy mount Proper statant thereon a stag armed and unguled Or resting the dexter foreleg upon a staff raguly also Or and between the attires a cross egrailed Gold.
Escutcheon
Per pale Vert and Gules in pale a sword point upwards Argent hilt pommels and quillons Or between in chief two portcullises also or all within a bordure engrailed of the last thereon eight pellets.
Supporters
Dexter, a dragon statant erect tail nowed Gules gorged with a crown rayonny Gold; Sinister, a lamb statant erect Or gorged with a crown rayonny Gules.