Although he isn't Chaucer, this author told of a nobleman who forces his patient peasant wife to prepare a wedding feast for a fake marriage in order to test her obedience, so Griselda stays with Gualtieri in this author's story narrated by Dioneo.
In one short story by this man, Calindrino and two friends look for a bloodstone beside the Mugnone River. Another of this author's short stories about Melchizidek the Jew inspired  the plot of Gotthold Lessing's Nathan the Wise. Although he isn't Chaucer, this author told of a nobleman who forces his patient peasant wife to prepare a wedding feast for a fake marriage in order to test her obedience, so Griselda stays with Gualtieri in this author's story narrated by Dioneo. This author also wrote about Ciapoletto, who is hailed as a saint, to begin collection of 100 short stories told by Florentines like Lauretta and Fiametta during the plague. For 10 points, name this Italian author of the Decameron.
In one short story by this man, Calindrino and two friends look for a bloodstone beside the Mugnone River.
Giovanni Boccaccio