GIUSTINIANI, GIACOMO. - Cardinal, b. 29 Dec. 1769 in Roma, d. 24 Feb. 1843 there. Vice-legate of Ravenna in 1794, governor of Perugia
in 1797, and president of the Council of State in Roma, he withdrew to Napoli after the occupation of Roma by General Berthier.
Upon the return of Pio VII in 1814, G. was appointed pro-governor of Roma. Titular archbishop of Tiro in 1817 and nuncio in Spain, he remained there until 1826. Created cardinal on 2 Oct. 1826 by Leone XII, he was bishop of Imola until 1832. In the Conclave of 1830 he was among the papabili, but his elevation to the tiara was obstructed by the veto imposed by the government of Madrid.
BIBL.: G. Moroni, Diz. di erudiz. storico-ecl., XXXI, pp. 221-26; A. Eisler, Das Veto der katholischen Staaten bei der Papstzahl, Vienna 1907, pp. 240-42; J. Becker, Relaciones diplomáticas entre España y la S. Sede durante el siglo XIX, Madrid 1909, passim; J. Schmidlin, Papstgeschichte der neuesten Zeit, I, Monaco 1933, passim.