was an Anglo-Norman landowner of the eleventh century, mentioned in the Domesday Survey. He had a castle at Cardinham, where he was a major tenant and steward of Robert of Mortain. The holding included the manor of Penhallam. His son was William Fitz Richard of Cardinham. Restormel Castle belonged to the Cardinhams in the 12th century, until Andrew de Cardinham's daughter married Thomas de Tracey. Cardinham Castle remained in the family until the 14th century and later became a ruin. The manor of Cardinham is one of the few where the custom of Free Bench is recorded: by this a widow could retain tenure of the land until she remarried. The Tenant-in-chief of the manor of Glynn as recorded in the Domesday Book was Robert, Count of Mortain; when it was one of several manors held by Osferth of Okehampton, County Devon, who had also held it before 1066 and paid tax for 1 virgate of land. There was land for 2 ploughs. There were 1 plough, 1 serf, 2 villeins, 6 smallholders, 100 acres of woodland, 40 acres of pasture, 4 unbroken mares, 2 cows, 24 sheep and 7 goats. The value of the manor was 10 shillings though it has formerly been worth £2 sterling. As of 25 May 2019, the titles of Baron of Cardinham and Lord of the Manor of Cardinham are jointly held by an American citizen.
Climate
The highest temperature recorded since 1990 is 28.1 °C on 20 June 2017 and 9 July 2018 and the lowest is -8.2 °C on 7 February 1991.
Parish church
The parish church is dedicated to St Meubred: it has north and south aisles and a tower of granite. The chancel suffered bomb damage in World War II. In the church is the brass of Thomas Awmarle, rector of Cardinham, d. 1401? Two freestanding Celtic crosses of stone, bearing inscriptions in Latin have been found in Cardinham; both had been embedded in the walls of the fifteenth-century church and were moved after their discovery to the churchyard. One has been dated to the fifth to eighth centuries, the other to the tenth or eleventh centuries: Arthur Langdon also records five other stone crosses in the parish. Andrew Langdon records two crosses in the churchyard, Higher Deviock Cross, Pinsla Cross at Glynn, Poundstock Cross, Treslea or Wydeyeat Cross and Treslea Down Cross.
China clay
The former quarry of the Glynn Valley China Clay Works has closed down and is now flooded. It was in operation from the 1940s but since 2015 the site has been used for camping.
