The "father of the Italian language" knew the Casentino valley in depth. In 1310, he was a guest of the Guidi Counts in their residence, Poppi Castle, a majestic building that overlooks the entire valley. Here, it's said that he wrote the 33rd canto of Hell. It's one of the most famous verses of the Divine Comedy and revolves around the figure of Count Ugolino della Gherardesca, with whom the Guidi were related by marriage. Remaining a guest of the Guidi Counts, the Supreme poet got to know the architectural wonders of the valley such as the castles of Romena and Porciano.
There's frequent mention of Romena and the story of the forger Mastro Adamo, a forger of the Counts who was burned alive in a place that, precisely because of this fact, takes the name of Omomorto.
Dante, like many other great authors and thinkers, was amazed to see the richeness of the territory of Casentino, where the green hills and streams create an idyllic landscape. In fact, in the 30th Canto of Hell, he describes the descent of the "streams" that descend from the hills to reach the Arno river.