A litany used in the RC Church. It consists of invocations for mercy and deliverance addressed to the Persons of the Trinity and for intercession to the BVM and a list of prophets, patriarchs, angels, saints, confessors, and virgins, individually and in classes. Early forms of such a litany are found in the E. from the end of the 3rd cent. and in the W. from the late 5th cent. The list of saints varied until in 1570 it became necessary to obtain Papal licence to differ from the use of Rome. It was revised in 1969, when some modern saints were added.