The Spiritual Canvas of Agostino di Marsiglio: A Bolognese Master in Siena Agostino di Marsiglio, born in Bologna, Italy, in 1439, remains a compelling yet somewhat enigmatic figure within the landscape of early Renaissance painting. While biographical details are scarce, his enduring legacy is powerfully etched onto the walls of the Battistero di San Giovanni in Siena, where his frescoes breathe life into the stories and symbolism ce…