Trevignano Romano has 5,274 inhabitants on an inlet of the northern shore of Lake Bracciano. In the coat of arms, which goes back to the fourteenth century, there are three vine shoots, and everyone derives the town's name from them: three vineyards, Trevignano. Except that it is not so. The name comes from Trebonianum, an old estate recorded in the area, perhaps from an Umbrian root meaning "inhabited place"; the shield, in other words, illustrates an etymology the sources reject, and has been doing so for six hundred years. The rest of the arms is more honest: the silver and red band and the wild rose are the Orsini, who held the place, and the three waves at the foot are the lake.
In the church of Santa Caterina, outside the walls, is buried Tommaso Silvestri, the first educator of the deaf in Italy, and the building has had a curious life. In 1843 it ceased to be a parish and became first a granary and then a carpenter's workshop; it was restored and reopened for worship only in 1928, for the celebrations in Silvestri's honour, precisely in order to hold his remains. Up in the parish church, meanwhile, the apse carries an Assumption painted in 1517 by Pellegrino da Modena, of Raphael's school, and some believe the master at least drew the design. And a kilometre out of the village a little church of 1452 keeps the boulder from which Saint Bernardino of Siena is said to have preached to the people of Trevignano.