Research Notes:
Roger Corbet was a member of Parliament for Shropshire in February 1383, October 1383, and 1391. [1]
[1] J.S. Roskell, Linda Clark, and Carole Rawcliffe, The History of Parliament: The House of Commons 1386-1421, 4 vols. (Stroud: Alan Sutton for the History of Parliament Trust, 1992), [History of Parliament Online].