In partibus infidelium

"In Partibus Infidelium" (often shortened to "in partibus", or abbreviated as i.p.i.), is a Latin phrase meaning "in the lands of unbelievers," words once added to the name of the see conferred on non-residential or titular Roman Catholic bishops, for example: "John Doe, Bishop of Tyre (Lebanon) "in partibus infidelium". [CathEncy|url=http://en.wikisource.org/wiki/Catholic_Encyclopedia_(1913)/In_Partibus_Infidelium|title=In Partibus Infidelium]

Formerly, when bishops were forced to flee from their see, they were welcomed by other Churches, while preserving their titles and their rights to their own dioceses. They were even entrusted with the administration of vacant sees. Thus, we find St. Gregory appointing John, Bishop of Alessio, who had been expelled by his enemies, to the See of Squilace (cap. "Pastoralis", xliii, caus. vii, q. 1). In later days it was deemed fitting to preserve the memory of ancient Christian Churches that had fallen into the hands of other religions; this was done by giving their names to auxiliary bishops or bishops in missionary countries.

An interesting example of an enduring 'in Partibus' bishopric is that of the Bishop of Bethlehem. In 1168, the crusading William IV, Count of Nevers had promised the Bishop of Bethlehem that if Bethlehem should fall under Muslim control, he would welcome either him or his successors in the small town of Clamecy in the present day Burgundy, France. After the capture of Bethlehem by Saladin in 1187, the bequest of the by then deceased Count was honoured and the Bishop of Bethlehem duly took up residence in the hospital of Panthenor, Clamecy in 1223. Clamecy remained the continuous 'in partibus infidelium' seat of the Bishopric of Bethlehem for almost 600 years, until the French Revolution in 1789.. [de Sivry, L: "Dictionnaire de Geographie Ecclesiastique", page 375., 1852 ed, from ecclesiastical record of letters between the Bishops of Bethlehem 'in partibus' to the bishops of Auxerre.]

Prospero Fagnani (in cap. "Episcopalia", i, "De privilegiis") says that the regular appointment of titular bishops dates back only to the time of the Fifth Lateran Council under Leo X (Session IX); cardinals alone were authorized to ask for them for the dioceses. St. Pius V extended the privilege to the sees in which it was customary to have auxiliary bishops. Since then the practice became more widespread. The Sacred Congregation of the Propaganda, by its circular letter of 3 March, 1882, abolished the expression "in partibus infidelium"; the present custom is to join to the name of the see that of the district to which it formerly belonged, e.g. "Johannes Doe, Archiepiscopus Corinthius in Achaiâ," or else merely to say "titular bishop".

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