In Norman times a small castle was
established at Bossiney, probably before the Domesday Survey of 1086; Bossiney
and Trevena were established as a borough in 1253 by Richard, 1st Earl of
Cornwall. In Domesday Book there are certainly two manors in this parish (for a
probable third see Trethevy). Bossiney (which included Trevena) was held from
the monks of Bodmin by the Earl of Cornwall: there was land for 6 ploughs and
30 acres (120,000 m) of pasture (before the Conquest it had been held from
the monks by Alfwy). The monks of Bodmin held Treknow themselves: there was
land for 8 ploughs and
