You can also see hints of the older structure in the rectangular tribune, built where the apse once stood. On the main altar, there’s a wooden cross created by Raffaello da Montelupo. Inside, you’ll find an octagonal baptismal font in glazed terracotta made by the School of Giovanni della Robbia. It depicts stories from the life of Saint John the Baptist. In addition, you’ll find the Medici coat of arms, evidence that the country church once belonged to the Medici dynasty.
An important figure for this church is Tommaso Poggini. He lived during the XVIII century and died in San Piero a Sieve. He was pastor at the Church of San Cristofano in Florence and later parish priest at the country Church of San Pietro. Thanks to his personality, he became friend of various illustrious figures of his time such as the Grand Duke of Tuscany, Pietro Leopoldo and Pope Benedict XIV who urged him to manage the church in the Mugello.