Introduction→ Construction began on the Battistero di San Giovanni (also known as the Florence Baptistery) in 1059, though an octagonal baptistery had previously existed since at least the late fourth or early fifth century. It is also believed that a Roman pagan temple dedicated to Mars had earlier existed on the site. Dante Alighieri and many prominent Florentines were baptised in the Baptistery.The Baptistery of San Giovanni is one of the most ancient churches in Florence, and was a project in motion in the 1059. It was to be octagonal and completely cladded in slabs of white Carrara and green Prato marble. It was made out of faith, history, and art. It was made during the time of the Romans which was a pagan temple that was converted to