http://patriot.net/~crouch/up/treng.html

A Crouch Family Heritage Association Family Tree page, Nance family line

Quoted from "Genealogy of the Nances in Cornwall" by Martin L. "Pete" Nance, 1970.

Text excerpted from Dave Nance's Definitive Nance Genealogy Clearinghouse

Alexander Nans from St. Anthony , , son of AGNES TRUDELL and LAWERENCE NANS, was living at a place called Trengove-vyan (little smith) in Illogan Parish in 1506. We later find this place to adjoin a place called Nans. He married Constance Gylette, daughter and only child of Henry Gylette of Clowance of St. Just Parish. As heir by law to his father he would have received Truthall at his parents' death. However, the records show Richard Nans a son as receiving Truthall as heir by law at the death of his grandmother. Thus, we must assume that Agnes Trudell Nance survived her son, Alexander Nans. There being no records after 1506, we must assume he died soon after. Records show in several of the Burke's books of heraldry arms was awarded to Alexander Trengove, alias Nans. This listing does not tell of service rendered to the crown, but shows him to have been knighted in 1485 in the first year of Henry VII's rule. Excerpts from Cornish history say that at the conclusion of the Wars of the Roses at the battle of Bosworth Field, where the forces of the house of Lancaster under Henry Tudor were victorious over the house of York, after which Henry Tudor became the new king of England and was proclaimed King Henry VII of England, he immediately knighted a number of his Cornish followers on the field at Bosworth. Thus it would appear that this is the start of the history of the Nance arms. Official records found concerning Sir Alexander Nans states him to be Sir Alexander Nans of Trengove in Illogan, and not Alexander Trengove, alias Nans, as quoted in Burke's.

http://freepages.genealogy.rootsweb.ancestry.com/~nancegc/nnc_arms.htm

Discussion about the Nans Coat of Arms -- interesting to read.