TREDENHAM, TREDINHAM: From Tredenham in the parish of Probus, the town or dwelling of Denham or Dinham; perhaps the baronial family of Dinham of Cornwall and Devon. This is said to be confirmed by the fact that both families bear in their coat-armour fusils (which are far from common in heraldry), the noble family carrying them in fesse, the gentle one in bend. Dinham or Denham, as a Cornish-Saxon compound, would translate the fortified dwelling. Dinham however is the name of a family in Monmouthshire, and Denham that of parishes in Suffolk and Bucks. compare Cardinham.

TREDENHAM: An ancient Cornish family who resided at Tredenham in the parish of Probus. There are strong reasons for believing them to have been an offshoot of the baronial family of Dinham of Cornwall and Devon. The prefix Tre in the Cornish tongue signifies, like the Saxon tun, an enclosure, or fenced estate. It is, therefore, quite possible that a cadet of Dinham or Denham (as the name was sometimes called) may have given the name of Tre-Denham, or "Denham's estate" to his lands, and that afterwards his descendants took their surname from those lands in the ordinary way. A remarkable confirmation of this notion is, that both families bear in their coat armour fusils (which are far from common in heraldry)-the noble family carrying them in fesse, and the gentle one in bend. See C. S. Gilbert's Cornwall.