The settlement of the castle of Monsummano Alto is documented from 1260, but probably existed since the previous century, or, as some have suggested due to the topology from the Lombard era. The castle was at the center of battles between Florence and Lucca, with its final conquest in 1331. The flat area was swampy (which can still be seen today through the Fucecchio Padule, close by), which became a human settlement in the second half of the 16th century with the construction of several farms and houses.