Italian cardinal and Roman Curia official. His last name is also listed as Garelli-Paracciani; and as Clarelli Parracciani. Relator of the S.C. of Good Government in June 1821. Entered the service of the Reverend Fabric of Saint Peter's basilica; its secretary and economous in January 1829. Canon of the patriarchal Vatican basilica; exercised his functions as a prelate in 1821; and as a judge in 1822.
Second assessor of the tribunal of the governor of Rome in 1823; first assessor in 1825. Secretary of the S.C. of Waters in 1826. Vicar in Rieti. Pro-legate in Bologna in December 1830, for the duration of the 1830-1831 conclave; recalled to Rome, he assumed again his functions at the Fabric of Saint Peter's basilica. Cleric of the Apostolic Chamber in December 1836; later, president of the archives. Secretary of the Sacred Consulta in January 1843. Vice-governor of Rome. Elected bishop of Montefiascone e Corneto, January 22, 1844. 
 
Created cardinal priest in the consistory of January 22, 1844; received the red hat and the title of S. Pietro in Vincoli, January 25, 1844. Participated in the conclave of 1846, which elected Pope Pius IX. Accompanied the pope in his escape to Gaeta in 1848. Resigned the pastoral government of the diocese of Montefiascone e Corneto for reasons of health in June 1854. Returned to Rome. President of the Commission of subsidies for Public Beneficence and of certain charitable institutions such as the Institute for the Deaf and Mute. Prefect of the S.C. of Bishops and Religious, October 10, 1860 until April 23, 1863. Secretary of Apostolic Briefs, April 24, 1863. Grand chancellor of the Pontifical Equestrian Orders in April 1862. Opted for the order of cardinal bishops and the suburbicarian see of Frascati on February 22, 1867. Participated in the First Vatican Council, 1869-1870. Archpriest of the patriarchal Vatican basilica and prefect of the S.C. of the Fabric of Saint Peter's basilica in 1870. He was protector of the Franciscan Minor Conventual and Cistercian Orders.
 
ALS - Autograph Letter Signed, one page with integral address panel. Dated 31 December 1850, Corneto. Friendly letter to Antonino Giusso, Naples. Untranslated. Usual folds and light toning. Has a small gold imprinted closure seal.