The connection of the two territories was made official in 1826, a connection that lasted until 1930, when Guadagnolo passed under the municipality of Capranica Prenestina, of which it is still part. The two villages, since their foundation more than a thousand years ago, have always been linked by a common fate and for about 800 years they were part of the same fief. Since 2010, a panoramic road has been opened, which can also be accessed by cars, which connects Poli directly to Guadagnolo.