Copin

The name of the Jew into whose house the boy was taken is given as Copin or Jopin.

Ballads of Mystery and Miracle and Fyttes of Mirth Popular Ballads of the Olden Times - Second Series Frank Sidgwick

Copin, the famous Felipe de Vigardi, Juan de Lancre, Anton de Soto, Juan de Villareal, Pedro de Colindres, and many others.

Scientific American Supplement, No. 344, August 5, 1882 Various

Copin was accused of having enticed the child into his house.

The Catholic Encyclopedia, Volume 7: Gregory XII-Infallability 1840-1916 1913

Copin was accused of murder, confessed the crime when threatened with death, and stated that it was a Jewish custom to crucify a boy once a year.

The Catholic Encyclopedia, Volume 7: Gregory XII-Infallability 1840-1916 1913

Copin was put to a cruel death and eighteen Jews were hanged at Lincoln, while about ninety were imprisoned in London.

The Catholic Encyclopedia, Volume 7: Gregory XII-Infallability 1840-1916 1913

The poor Jew named Copin confessed, in exchange for his life, that the boy was crucified.

YID With LID 2009