Cuppernell is the 33,987th most popular last name in the United States.
There are many variations in the spelling of the name Coppernoll in early records, Cobernol, Copenol, Coopernael, Koppenol, Cupinawl, Currenull, Coppenholle, etc.
John C. Koppenol, of Grand Rapids, Michigan and later Venice Florida, did research on the name. He was born in the Netherlands, a descendent of Adrian Van Coppenholle.  Although not a direct descendant of the Mohawk Valley Coppernolls, he feels he is somehow related to them.  The name was found by him in various spellings near Rotterdam in Holland during the 1960's.
A Coat of Arms in his possession depicts a gold shield, red mantlings and five black diamonds.
It is known that the family were originally French Hugenots - the "Van's" are Dutch and the "De's" French and Flemish.
Found in the Peabody Library at Baltimore Maryland were five Coats of Arms used by the family;
Coppenaal (Van)   Holland              D'azur au chev. de sa., ch. d'un cygue
                                                           d'arg. et acc. de trois coupes couvertes
                                                           du meme. c. un vol.

Coppenolle (De)    Flandre               De gu. au chev. d'arg., acc de trois                                                                      tete et cols d'aigle d'or.

Coppenolle (Van)  Brab.                  D'azur a trois tetes d'oiseau d'or.

Coppenolle (Van)  Flandre               D'or a six los de sa.

Coppenolle (De)   Tournaisis           D'arg a trois scarabees de sa.

An Arms belonging to a Jean Coppenole of the 15th century; descibed as follows:  Coppenole: Trois coquilles, 2 et 1. S.: - un agne. Sceau de Jean Coppenolle (s.dne. Johannis Coppenole), XV siecle.  Matrice de la collection Schuermans n, 338.
Research in the European sector indicated another Coat of Arms as follows:  Under the reign of Maria Theresa the city of Gent was saved from starvation by the Van Coppenolle family of Volkegem, Belgium, who supplied the city with grain for it's survival.  Their Coat of Arms represents a half moon, a ladder and a lion.  The church at Volkegen burned down in the 1830's, destroying the original Coat of Arms and all credentials belonging to the family with proof of their right to wear it.  The credentials were signed and approved by Maria Theresa.  The town of Vokegem, situated on the top of a hill that dominated the Oudenarde area dates back a thousand years.
Yet another Coat of Arms found in Ronse, Belgium, belonged to Barthelemy Van Coppenole who was an important magistrate (alderman) in Grammene, Belgium in the year 1524.  The Arms is described as being illuminated by a knob of a rose with creased stalk and chevron.
Several Van Coppenolls have been found who had fled to the Netherlands and settled in Delft, Gouda, and Schoonhaven as tapestry workers. Originally they had livd in Ronse (Renaix), Flanders Province, Belgium.
The period of 1550 - 1570 was characterized by much religious strife in Flanders: houses burned, people executed and properties confiscated.  On the list of these atrocities are found the names of the Van Coppenolle family: Marguerite, Barbe, widow of Guillaume (William), Martin and Michael.  Members of Michael Van Coppenolle's family fled to Holland, Emden and Norwich.  At the same time many members of the Van Coppenolle family remained in Rouse, Oudenaarde, Gent and Antwerp.  More than 20 names of the Van Coppenolle family appear in the books of Frans de Moor a famous tapestry worker.  Between 1630 - 1660, they sold to all countries, "Wall Tapestries" with historical and allegorical subjects as well as Verdures (tapestries showing landscapes).  The Van Coppenolle's worked for the deMoors, then later became their own masters.
The cloth industries flourished in Oudenarde until the fifteenth century but the city gained world-wide renown because of it's tapestries, the Oudenarde verdures.  The last weaver's workshop did not disappear until the eighteenth century.  Coppenolls have been found in this area back into the 1200's.
A large platt of Ronse indicates a land corner called, "Hooge Coppenolle" - (Hooge meaning estate).  A Mr. Vallez Gilbert Vancoppenolle lived on the estate on the outskirts of Ronse in the 1980's.  This site had been surveyed in 1660 and called "Coppenhole Velt" at that time.  In the 1980's there were over 90 families of that name living in Ronse and it's vicinity, with many more living in adjacent Brabant and Antwerp provinces.
A Jan Van Coppenolle lived in Ronse in the 15th century and under his leadership the people of Gent in 1487 kept Maximilian from Austria (son of the German emperor Frederick III) prisoner in Brugge for four months in order to regain the rights of liberty of the city.  Between 1490 and 1492, he led a revolt of the town of Gent against Maximilian and following a seige of 2 years was obliged to surrender.  He was beheaded in 1492.  It is said after this tragedy the family moved back to Ronse where many descendants live today.  (Coppernoll Genealogy)