Luigi Jacobini

Coat of arms of Lodovico Jacobini

Styles of Luigi Jacobini
Reference style	His Eminence
Spoken style	Your Eminence
Informal style	Cardinal
See	Thessaloni

Born in Genzano, Lodovico Jacobini studied at the seminary in Albano before being ordained to the priesthood in Rome on 23 September 1854. He then furthered his studies at the Sapienza University in Rome, where he obtained his doctorate in theology (20 July 1857) and his doctorate in civil and canon law (25 June 1858). Jacobini then entered the Roman Curia, serving as a staff member in the Secretariat of Ecclesiastical Affairs. He was raised to the rank of Domestic Prelate of His Holiness, and also became Secretary of the Congregations of Propaganda Fide, which at that times also was responsible for relations with Oriental Rites.

In 1862, he was appointed secretary to the first commission for the preparation of the Syllabus. Later named a canon of the Lateran Basilica, Jacobini served as a referendary on the Apostolic Signatura as well. In 1867, he was charged with the weighty task of gathering and publishing the answers of the world's bishops to the questionnaire for the preparation of the First Vatican Council. During the Council, Jacobini was secretary of the preparatory commission for Church discipline, also serving as Undersecretary of the Council from 1869 to 1870.

On 20 March 1874, Jacobini was appointed Titular Archbishop of Thessalonica by Pope Pius IX. He received his episcopal consecration on the following 24 March from Cardinal Costantino Patrizi Naro. He was named Nuncio to Austria three days later, on 27 March 1874. Pope Leo XIII created Jacobini Cardinal-Priest of S Maria della Vittoria in the consistory of 19 September 1879. He was decorated with the Grand Cross of the Austrian Order of Sankt Stefan in 1880. On 16 December of that same year, Jacobini was appointed Vatican Secretary of State (essentially the Pope's prime minister) and Administrator of the Wealth of the Holy See.

He died in Rome, at age 55, from an illness that had lasted nearly two years. He was buried on 6 March 1887, he is buried in the chapel of the Congregation of Propagation of the Faith in the Campo Verano cemetery.

He cousin Angelo Jacobini (1825–1886) was also a cardinal.[1]

• Knight Grand Cross of the Royal Order of Kalākaua I, 1881[2]