was a papal bull of 29 September 1850 by which Pope Pius IX recreated the Roman Catholic diocesan hierarchy in England, which had been extinguished with the death of the last Marian bishop in the reign of Elizabeth I. New names were given to the dioceses, as the old ones were in use by the Church of England. The bull aroused considerable anti-Catholic feeling among English Protestants. History When Catholics in England were deprived of the normal episcopal hierarchy, their general pastoral care was entrusted at first to a priest with the title of archpriest (in effect an apostolic prefect), and then, from 1623 to 1688, to one or more apostolic vicars, bishops of titular sees governing not in their own names, as diocesan bishops do, but provisionally in the name of the Pope. At first there was a single vicar for the whole kingdom, later their number was increased to four, assigned respectively to the London District, the Midland District, the Northern District, and the Western District. The number of vicariates was doubled in 1840, becoming eight: the apostolic vicariates of the London district, the Western, Eastern, and Central districts, and the districts of Wales, Lancashire, Yorkshire, and the North. The legal situation of Catholics in England and Wales was altered for the better by the Catholic Relief Act 1829, and English Catholics, who before had been reduced to a few tens of thousands, received in the 19th century thousands of converts from Anglicanism and millions of Irish Catholic immigrants, so that Catholics came to form some 10% of the general population of England and a considerably higher proportion of church-goers. In response to petitions presented by local clergy and laity, Pope Pius IX issued the bull Universalis Ecclesiae restoring the normal diocesan hierarchy. The reasons stated in the bull are: "Considering the actual condition of Catholicism in England, reflecting on the considerable number of the Catholics, a number every day augmenting, and remarking how from day to day the obstacles become removed which chiefly opposed the propagation of the Catholic religion, We perceived that the time had arrived for restoring in England the ordinary form of ecclesiastical government, as freely constituted in other nations, where no particular cause necessitates the ministry of Vicars Apostolic." The London district became the metropolitan Diocese of Westminster and the diocese of Southwark; the Northern district became the diocese of Hexham; that of