In the hamlet of Planaval, at the start of Valgrisenche, you will find the fortified manor house of Rodolfo d’Avise, built in 1312.
The building has a rectangular plan and has a series of loopholes visible from the road that goes up the valley.
Note - this information is not directly connected to the Cammino Balteo path but it is part of the Aosta Valley tourist offer.