| Type: | Cardinal |
| Honorific Prefix: | His Eminence |
| Mieczysław Halka-Ledóchowski | |
| Prefect of the Congregation for the Propagation of the Faith | |
| Church: | Roman Catholic Church |
| Appointed: | 26 January 1892 |
| Term End: | 22 July 1902 |
| Predecessor: | Giovanni Simeoni |
| Successor: | Girolamo Maria Gotti |
| Ordination: | 13 July 1845 |
| Ordained By: | Luigi Lambruschini |
| Consecration: | 3 November 1861 |
| Consecrated By: | Camillo di Pietro |
| Cardinal: | 15 March 1875 |
| Created Cardinal By: | Pope Pius IX |
| Rank: | Cardinal-Priest |
| Birth Name: | Mieczysław Halka-Ledóchowski |
| Birth Date: | 29 October 1822 |
| Birth Place: | Górki, Congress Poland |
| Death Place: | Rome, Kingdom of Italy |
| Buried: | Campo Verano (1902–27) Poznań Cathedral |
| Parents: | Josef Ledóchowski Maria Rosalia Zakrzewska |
| Alma Mater: | Pontifical Academy of Ecclesiastical Nobles Collegio Romano |
| Coat Of Arms: | COA cardinal PL Halka-Ledochowski Mieczyslaw.png |
| Cardinal Name: | Mieczysław Ledóchowski |
| Dipstyle: | His Eminence |
| Offstyle: | Your Eminence |
| See: | Poznań and Gniezno |
Mieczysław Halka-Ledóchowski (IPA: /mʲɛˈtʂɨswaf ˈxalka lɛduˈxɔfski/), (29 October 1822 - 22 July 1902) was born in Górki (near Sandomierz) in Russian-controlled Congress Poland[1] to Count Josef Ledóchowski and Maria Zakrzewska. He was uncle to Saint Ursula Ledóchowska, the Blessed Maria Teresia (Theresa) Ledóchowska and Father Włodzimierz Ledóchowski, General Superior of the Society of Jesus.
Born 29 October 1822, he was named after Mieszko I, the first Christian prince of Poland.[2] After studying at Radom, at the age of nineteen, he entered the seminary at Warsaw run by the Missionaries of St. Vincent de Paul. He then studied at the Gregorian University in Rome and entered the Jesuit Accademia dei Nobili Ecclesiastici to prepare to work in the diplomatic corps of the Holy See. Ledóchowski was ordained priest on 13 July 1845. He earned two doctorates, in theology and civil and canon law.[3]
Father Ledóchowski became domestic prelate of Pope Pius IX in 1846, and in 1847 auditor of the papal nunciature at Lisbon. In 1857 he became papal delegate in Bogota for an area that encompassed present-day Colombia, Venezuela, Ecuador, Peru and Bolivia. In 1861, he was named titular archbishop of Thebes and papal nuncio at Brussels.[3]
After returning to Poland in 1864, he was named coadjutor with right of succession to Primate Leon Przyłuski, and two years later, upon Przyłuski's death, despite the opposition of the Prussian authorities, he was appointed archbishop of Gniezno and Archbishop of Poznań, (both cities then a part of the Prussian Province of Posen).[1]
In 1873, the Prussian government began the implementation of Kulturkampf policies against the Roman Catholic Church and Polish culture, the Polish language in particular. In the aftermath, the Prussian government forbade the use of Polish in instruction in the Province of Posen. Archbishop Ledóchowski urgently protested the order and ultimately issued a circular ordering the religion teachers at higher educational institutes to use the German language in their teachings to the higher classes but to preserve Polish in their teachings to the lower classes.[1]
The religious instructors obediently followed the archbishop's order and were subsequently deposed by the Prussian government. Ledóchowski's refusal to cede control of the seminaries of Gniezno and Poznan to the Prussian authorities eventually led to their closure.[3] After repeated fines for outlawed activity, the government demanded Ledóchowski's resignation. The archbishop responded that no temporal court could deprive him of an office granted to him by God, and he was jailed in the Ostrów Wielkopolski prison in February 1874.[2]
In March 1875, the Pope appointed him as Cardinal. Ledóchowski was released and banished and thereafter ruled his see from Rome through secret emissaries. Towards the end of his life he began to have serious vision problems of cataracts. He resigned in 1885. In 1892 he became Prefect of the Congregation for the Evangelization of Peoples, an office which he held until his death,[2] on 22 July 1902.