Home› Librettists› Apostolo Zeno and Pietro Pariati Librettist · Catalogued Works Apostolo Zeno and Pietro Pariati 2 opera libretti catalogued, listed by date of premiere. Complete Catalogue of Libretti by Apostolo Zeno and Pietro Pariati 1706 Ambleto by Francesco Gasparini, 1706 Francesco Gasparini Italian 1719 Don Chisciotte in Sierra Morena by Francesco Bartolomeo Conti, 1719 Francesco Bartolomeo Conti Italian