On 30 June 1697 he was elected provveditore alle Pompe (a minor public office, aimed to limit the use of precious and luxury objects and their display).

The bulls of investiture remained concealed, so as to avoid negative repercussions from Emperor Leopold, who ruled about the half of the territories of the Patriarchate and wanted to appoint one of his subjects.

[2] He received the episcopal consecration as titular bishop of Titiopolis in Rome on 6 February 1701 by the hands of Cardinal Daniello Marco Delfino.

[1] On 19 November 1714 Marco Gradenigo was appointed bishop of Verona and handed over the position of coadjutor of the patriarch of Aquileia to Daniele Dolfin, nephew of Dionisio.

[2] The celebration of Patriarch Gradenigo's inauguration lasted three days: it consisted of a procession, church services, a gondola ride, a street party.