Copied from the FAI site
The Castle of Parpaglia is one of the rare medieval pre-existences of the composite and rich territory of the park of Stupinigi. Closely connected to the Parpaglia farmhouse, currently inhabited and home to farms and peasant workers from the surrounding fields, it urgently needs to be secured and recovered and restored to its former glory. The precise period of construction of the fortification is lost in time although it is probable that its birth corresponds to the middle of the XII (XIII) century. The noble Willelmus already present in 1199 and owner of goods in Candiolo, was the first Lord of the place. Deriving from the Parpaglia family of the Lords of Revigliasco, a locality on the hills of Turin, it belonged to the valiant Order of the Knights of San Giovanni in Gerusalemme, or the Hospitallers. Candiolo appeared as Priory of the Commandery of the Order of the Jerusalemites in the year 1358 which later, in 1530, became the current Order of Malta, although there were many allodial properties. The property changed hands several times, until the Marquis Perrachini Bonaventura di Cigliano sold it to the Royal Patrimony in 1760. After a short interval, caused by Napoleone Buonaparte, it passed into private hands and saw among the owners also Mr. Giuseppe Francesco Agnelli, the castle and the estate returned to be part of the Magistral Commandery of Stupinigi of the Mauritian Order. It is now regional property. Until a few decades ago the castle was inhabited and the walls of the tower preserved frescoes of ladies and soldiers.