Tavistock was the name of a parliamentary constituency in Devon between 1330 and 1974. Until 1885 it was a parliamentary borough, consisting solely of the town of Tavistock; it returned two Members of Parliament to the House of Commons of the Parliament of the United Kingdom until 1868, when its representation was reduced to one member. From 1885, the name was transferred to a single-member county constituency covering a much larger area.

Sir John Fortescue, of Ebrington in Gloucestershire, was Chief Justice of the King's Bench and was the author of De Laudibus Legum Angliae, first published posthumously circa 1543, an influential treatise on English law. In the course of Henry VI's reign, Fortescue was appointed one of the governors of Lincoln's Inn three times and served as a Member of Parliament from 1421 to 1437. He became one of the King's Serjeants during the Easter term of 1441, and subsequently served as Chief Justice of the King's Bench from 25 January 1442 to Easter term 1460.