In the Roman Catholic Church, protonotary apostolic (PA; Latin: protonotarius apostolicus) is the title for a member of the highest non-episcopal college of prelates in the Roman Curia or, outside Rome, an honorary prelate on whom the pope has conferred this title and its special privileges. An example is Prince Georg of Bavaria (1880–1943), who became in 1926 Protonotary by papal decree. Source: Wikipedia (en)