ˌɔn θˈɜːɾi ˈeɪpɹəl wˈʌn θˈaʊzənd θɹˈiːhˈʌndɹɪd fˈɪfti wˈʌn, kwˈiːn dʒoʊˈænə aɪ ʌv nˈeɪpəlz ænd hɜː hˈʌsbənd lˈuːi ʌv tæɹˈæntoʊ hæd mɔntˈaɪsəlˌoʊ, ɐlˈɔŋ wɪððə nˈeɪbɚɹɪŋ kəmjˈuːnᵻɾiz ʌv pənzˈɑːnoʊ, væɹˈɑːnoʊ ænd tˈoʊfoʊ sˌæntɪluːtˈɪɹiˌoʊ,  ɪŋkˈoːɹpɚɹˌeɪɾᵻd ˌɪntʊ tˈɛɹɪtˌoːɹi æt ðæt tˈaɪm ɹᵻfˈɜːd tʊ æz ɐ jˈuːnɪvɚsˌɪɾæ ʌv tˈɛɹəmˌoʊ.
On 30 April 1351, Queen Joanna I of Naples and her husband Louis of Taranto had Monticello, along with the neighboring communities of Ponzano, Varano and Tofo Sant'Eleuterio,  incorporated into territory (at that time referred to as a Università) of Teramo.