From SelectioNaturel:

Carlo Tanganelli, Marco's father, established an agricultural nursery over 40 years ago in order to preserve and propagate the local fruit varieties.  The family always made wine, mostly for themselves and locals but didn't start to bottle and sell their wine until the late 90's. Today Marco farms some 5 hectares of very old trebbiano, malvasia and sangiovese vines, with some new plantings being made in the past few years on some high altitude terraces far above the village.  

Links to more info about Tanganelli: