“…These 'conventionally accepted facts' from Taylor (Macve 1996, 8) continue to have an ongoing and expanding impact on the public perception of Luca Pacioli. They form the basis for the biographical material in Brown and Johnston's (1963) translation of Pacioli's treatise, the main source for a video published 27 years later to commemorate Pacioli's birth: Luca Pacioli: Unsung Hero of the Renaissance (Jackson,14 These biographies include: in English, Knight (1857), Taylor (1942), Jayawardene (1971), and Rankin (1992; in Spanish, Hernández-Esteve (1994b); and in Italian, Baldi (1589), Boncompagni (1879), Vianello (1896), Ricci (1940), Masotti Biggiogero (1960, Ulivi (1994Ulivi ( , 2009, and Ciocci (2003Ciocci ( , 2009Ciocci ( , 2011Ciocci ( , 2017. 15 Piero della Francesca was one of the most respected artists of his day, and c.30 years older than his kinsman, Pacioli.…”