Gabrielli was elevated to Cardinal by
Pope Urban VIII in December 1641 and that as a result, Gabrielli lived a respected but fairly meagre life. What wealth he did amass, Bargrave ascribed to his
frugality. In 1643, Gabrielli was appointed co-
legate in
Urbino (together with Cardinal
Francesco Barberini), a position he held until 1646. He participated in the
Papal conclave of 1644 but left early due to illness. The conclave elected
Pope Innocent X. He participated in the
conclave of 1655 that elected
Pope Alexander VII and opted for the deaconry of
Santa Maria in Via Lata later that year. In March of the following year, he became Cardinal-Priest of
Santa Prisca. In 1667, he participated in the
conclave which elected
Pope Clement IX and was appointed Cardinal-Priest of
Santa Prassede. Less than six months later, he was made Cardinal-Priest of
San Lorenzo in Lucina. In 1668, he was appointed Cardinal-
Bishop of Sabina but, retained the administration of Ascoli Piceno until later that year. ==Later life==