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.
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Note - this information is not directly connected to the Cammino Balteo path but it is part of the Aosta Valley tourist offer.