The old village of Gargonza belonged to the Ubertini, but in 1285 was conquered by the people of Arezzo, allies of the Ghibellini , lead by the bishop Vescovo Guglielmino. In 1307 the army of Florence laid siege to its castle but it was fortunately saved. In 1381, after being sold to the city of Siena by Giovanni Ubertini for 4000 gold florins ,the castle went back to Florence ownership in 1395. In 1774 Gargonza became a part of the municipality of Monte San Savino. Recently the family Guicciardini Corsi Salviati restored the castle and tuned it into a residence.
The village is protected by a thick wall surrounding a concentric row of houses. Passing through the main door on the north side you you can find a commemorative stone erected in 1921 to celebrate Dante Alighier's visit to Gargonza in 1302.