Michelangelo di Pietro Membrini's name was only matched to the work of the Master of the Lathrop Tondo in 1985. His distinctive artistic style, or hand, was first identified in the Getty Museum's tondo early in this century. By the 1960s connoisseurs had identified a body of work of nearly thirty paintings. In 1985 documentation was uncovered for one of these pictures, becoming the first proof of
