Tregrehan (EN) / Tregryghyon (KW)

Tregrechyon 1304 (Gover, The Place-Names of Cornwall, 1948) Tregrethyon 1304 (Gover, The Place-Names of Cornwall, 1948) Tregrean 1332 (Gover, The Place-Names of Cornwall, 1948) Tregrehan 1354 (NA ME/537/1,2) Tregryham 1386 (Gover, The Place-Names of Cornwall, 1948) Tregryan 1433 (Gover, The Place-Names of Cornwall, 1948) Tregryan alias Tregrehan 1488 (Gover, The Place-Names of Cornwall, 1948) Tregrehan - Carlyon Esq. 1748 (Martyn, 1748) Tregrehan 1856 (OS 1856) Higher Tregrehan 1856 (OS 1856) Tregrehan [St Blaise] 1888 (OS 1888) Tregrehan Mills [St Blaise] 1888 (OS 1888) Tregrehan 1974 (OS 1:50,000 First Series, 1974) Tregrehan Mills (SX 04 53) 2014 (OS 2014) Tregrehan Gardens (St Blaise) (SX 05 53) 2014 (OS 2014) Higher Tregrehan Farm (SX 04 54) 2014 (OS 2014)