Subsequently, he practiced as a lawyer for the remainder of his career, rising to become dean of the Ilfov County bar in 1896.
[1] Gianni entered politics in 1867, and thenceforth served as a deputy in all liberal-controlled legislatures.
He served as Minister of Justice twice during the long years of PNL government: from July 1880 to April 1881, and again at the very end, in March 1888.
He was a participant in the two crucial political acts of this period: the recognition of Romania's independence (1878) and its proclamation as a kingdom (1881).
[1] Eventually, Gianni entered the PNL's dissident faction, and in November 1885 joined the leadership of the Liberal-Democratic Party created by Dumitru C. Brătianu.