The Donation of Charlemagne
"We also give to the already mentioned holy place [the monastery of Tours] that valley called Camonica, with mountains and passes up until the Dalanias, comprising the mounts and alps bordering with Trentino and the border of Brescia and the lands around Bergamo [...]"
- Caroli Magni Diplomata - Papia, XVI Iulius 774
A bridge on the river Oglio
from Dalania to Dalegno
Finally, with the translation from the local dialect to Italian during the XIX and XX century, Dalegno became "di Legno".
The names of Ponte