His successor, Angelus Parsi, restored the episcopal palace, which had been destroyed by fire in 1847, and in 1852 brought to Bucharest the English Ladies, and in 1861 the Brothers of the Christian Schools.

In 1863 Bishop Parsi was succeeded by Josephus Pluym, from 1869 Patriarchal Vicar of Constantinople, who in turn was followed by Ignatius Paoli.

After the establishment of the Kingdom of Romania in 1881, a movement was initiated by the government to release the Catholic subjects from dependence on a foreign bishop, and negotiations were begun with Rome.

Two years later, Pope Leo XIII raised the Apostolic Vicariate of Wallachia to an archdiocese, with Bucharest as residence, which was exempt, i.e. directly subordinate to the Vatican.

In addition to national capital Bucharest, the archdiocese covers the rest of Wallachia (Oltenia, Muntenia and Dobruja)—the counties of Mehedinți, Gorj, Dolj, Vâlcea, Olt, Argeș, Teleorman, Dâmbovița, Giurgiu, Prahova, Ilfov, Buzău, Ialomița, Călărași, Brăila, Tulcea and Constanța, of which 0.9% are Roman Catholic, with the largest number of parishes in Bucharest.