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Biography
Marcantonio Colonna (16 August 1724 – 4 December 1793) was an Italian Catholic cardinal. Born in Rome on 16 August 1724, Colonna was made Cardinal-Deacon of Santa Maria by in Aquiro Pope Clement XIII on 19 November 1759. He was then ordained a deacon on 9 March 1760 and a priest on 1 February 1761. He was appointed Titular Archbishop of Corinthus and Cardinal-Priest of Santa Maria della Pace by Pope Clement XIII on 19 April 1762. Soon thereafter, on 25 April, Colonna was ordained a bishop. Pope Clement XIII acted as his consecrator and Pope Clement XI (then Cardinal Giovanni Francesco Albani) and Cardinal Henry Benedict Stuart acted as co-consecrators.
In 1763, he was appointed Prefect of the Congregation for Residence of Bishops and in January of that year, he was appointed Archpriest of the Basilica di Santa Maria Maggiore. On 25 June 1784, Colonna was made Cardinal-Priest of San Lorenzo in Lucina by Pope Clement XIV and on 20 September 1784, he was appointed Cardinal-Bishop of Palestrina. Colonna died on 4 December 1793.