Barnstaple in the 16th and 17th centuries greatly benefited the town. The wealthy merchants that this trade created built impressive town houses, some of which survive behind more recent frontages—they include No. 62 Boutport Street, said to have one of the best plaster ceilings in Devon. The merchants also built several almshouses including Penrose's, and ensured their legacy by dedicating elaborate monuments to their families inside the church. By the 18th century, Barnstaple had ceased to be a woollen manufacturing town, which was replaced by Irish wool and yarn, for which it was the main landing place; the raw materials were
Barnstaple August) by a jury of twelve. However Barnstaple was a mesne borough and was not held by the Mayor and Corporation in chief from the king but from the feudal baron of Barnstaple, later known as the lord of the "Castle Manor" or "Castle Court". The Corporation tried on several occasions to claim the status of a "free borough" which answered directly to the monarch and to divest itself of this overlordship, but without success. The mayor was not recognised as such by the monarch, but merely as the bailiff of the feudal baron. The powers of the borough were