Roccalbegna dominates the valley of the river Albegna at the slopes of mount Labbro, south of the Mount Amiata. It's about 11 kilometers far from Arcidosso, main center of the zone.
During the Middle Age the zone was under the dominion of the counts of the Aldobrandeschi family, to them is owed the construction of the fortifications in the second half of 13th century. The village was originally defended also by walls and by a keep with square form built on another small relief in front of the 'sasso'. This was the central nucleus of Roccalbegna, of which today remain only two towers and a line of the walled enclosure.
The fortress that has come almost intact to us was the small rocca, used only as point of lookout and last shelter in case of capitulation of the suburb. During the 14th century the suburb knew a period of great degrade that caused its almost total abandonment.
In 1455 the fortifications were readapted from the Senesi, but this only partly stopped the regressive trend of this area. With the defeat of the Senese Republic, at the mid-16th century, Roccalbegna passed to the Granduchy held up by Cosimo I de' Medici, but already in 1560 it was given in feud to the cardinal Antonio Sforza.