Luigi (Alvise) Giusti (Venice, 1709 – Vienna, 1766) was an Italian lawyer, poet, and librettist.
In the past, the libretto for Vivaldi's 1733 opera Motezuma had been attributed to Girolamo on the basis of a later archivist handwriting the name on a printed copy.
"[2] He married Francesca Manzoni in 1741, but the death of his young wife in childbirth in June 1743, radically changed his existence.
Deeply saddened, he was ordained a priest and in August 1745 he became secretary to the plenipotentiary minister of Austrian Lombardy, Gian Luca Pallavicini, increasingly distancing himself from poetry to dedicate himself to administrative tasks.
He was in the service of Pallavicini between 1745 and 1753, and then of his successor Beltrame Cristiani until 1757, when he moved to Vienna, to work for State Chancellor Kaunitz where he was charged with dealing with Lombardy.