| Type: | cardinal |
| Cardinal Archbishop of Toledo Primate of Spain | |
| Church: | Roman Catholic Church |
| Archdiocese: | Toledo |
| Term: | 1800–1814 |
| Predecessor: | Francisco Antonio de Lorenzana |
| Successor: | Pedro Inguanzo y Rivero |
| Other Post: | Administrator of Seville (1800–1814) Cardinal-Priest of Santa Maria della Scala (1800–1823) |
| Consecration: | 2 June 1799 |
| Consecrated By: | Antonio Sentmenat y Castellá |
| Cardinal: | 20 October 1800 |
| Rank: | Cardinal-Priest |
| Created Cardinal By: | Pope Pius VII |
| Birth Date: | 22 May 1777 |
| Birth Place: | Cadalso de los Vidrios, Spain |
| Death Date: | 19 March 1823 (aged 45) |
| Death Place: | Madrid, Spain |
| Buried: | Toledo Cathedral |
| Parents: | Infante Luis of Spain María Teresa de Vallabriga |
Don Luis María Cardinal de Borbón y Vallabriga, Farnesio y Rozas (22 May 1777 – 19 March 1823) was the 14th Count of Chinchón (1785–1803), Grandee of Spain First Class (4 August 1799), with a coat of arms of Bourbon, and 1st Marqués de San Martín de la Vega.
He was born in Cadalso de los Vidrios as the son of a morganatic marriage between Luis de Borbón y Farnesio, Infante of Spain, 13th Count of Chinchón, and María Teresa de Vallabriga y Rozas, Español y Drummond.[1]
Until Charles III, King of Spain died in 1788, this Borbón offspring was compelled not to use the family name and since 1785 when his father Luis, the king's brother, died, they had to move to the city of Toledo to be educated under the protection of the Archbishop of Toledo Francisco Antonio de Lorenzana y Butrón. He received his doctorate in canon law.
He was appointed to the following posts:
He was not present in Rome at the time of his elevation to the rank of cardinal, and the galero, biretta, and ring were sent to him.
Between 1820 and 1823, he played an important role in Spanish liberal politics, abolishing the Inquisition, although the Inquisition was restored again after the French invasion of Spain in 1823 to restore absolutist policies.
He was made a Knight of the Order of the Golden Fleece[2] on 9 July 1820. He died in Madrid aged 45, a few weeks before France invaded Spain and restored Ferdinand VII, and some fifteen years after Napoleon's invasion in May 1808.
The Cardinal-Archbishop officiating the ceremonies related to his promotion in the Church was .
He had two sisters:[3]
He died of gout in 1823 and was buried in the sacristy of Toledo Cathedral.