1911 Encyclopædia Britannica, Volume 21… (1911)
“ In the 12th century Plympton appears as a mesne borough under the lordship of the Redvers, earls of Devon, and in 1224 the burgesses claimed to have received a charter from William, the 6th earl, of which however nothing further is known, and the first charter of which a copy is extant was issued by Baldwin de Redvers in 1242, granting to the burgesses of Plympton the borough, with fairs and markets, and the liberties enjoyed by the citizens of Exeter, in consideration of a yearly payment of £24, 2s. ”
