Other, likely apocryphal, stories on the name's origin attribute its naming to the work of a 14th-century friar from the province of Siena who would use the leftover wine from Mass to cure the sick. The miraculous healing became associated with the "santo" or "holy" wine and the name "Vin Santo" was allegedly born. Another 15th-century story involves John Bessarion, a patriarch of the Greek Eastern Orthodox Church. According to legend, at the Ecumenical Council of Florence of 1439 a local Florentine wine called "Vin Pretto" (pure wine) was served. After trying the wine, Bessarion is said to have liked it and remarked that it was like Xanthos, alluding to the famous straw wine of Thrace, (though some sources said he described the wine as "Xantho" or "yellow"). The Florentine locals thought they heard the patriarch describe the wine as "Santo" and they accordingly started promoting the wine as a "holy wine". Another oft-cited theory for the name association is the tradition of starting fermentation around All Saint's Day and bottling the wine during Easter week.