Dominus Apostolicus

Domnus Apostolicus, or in classical Latin Dominus Apostolicus, meaning Apostolic Lord, is a historical title, in modern times only applied to the Pope, which was in most frequent use between the sixth and the eleventh centuries.

History

The Pope is styled Apostolic because he occupies an Apostolic see, that is, one founded by an Apostle of Christ, as were those of Ephesus, Philippi, Corinth etc. (cfr. Tertullian, De præscript., xxxvi). Rome being the only Apostolic Church of the West, Sedes apostolica meant simply the Roman See, and Domnus Apostolicus the Bishop of Rome.

In Gaul, however, as early as the fifth century the expression sedes apostolica was applied to any episcopal see, bishops being successors of the Apostles (see apostolic succession; cfr. Sidonius Apollinaris, Epp., lib. VI, i, etc.). By the sixth century the term was in general use, and many letters from the Merovingian kings to Gallic bishops are addressed Domnis sanctis et apostolicâ sede dignissimis. Thus the bishops of Gaul were given the title of Domnus Apostolicus (cf. Venantius Fortunatus, "Vita S. Mart.", IV; "Formulæ Marculfi", II, xxxix, xliii, xlix). Many examples are also found in wills and deeds (e.g. P.L., LXXX, 1281, 1314, etc.), and one occurs in a letter of introduction given by Charlemagne to St. Boniface (Epp. Bonifac., xi).

However, in the Acts of Charlemagne and of the councils held during his reign, even outside the Frankish Empire, as in England, the term Domnus Apostolicus, in its exact usage, meant simply the pope. Perhaps the only example of its literal translation found in Greek authors is in the second letter of Theodore the Studite to pope Leo III, kyrio apostoliko.

Long before this, however, the word Apostolicus alone had been employed to designate the pope. Probably the earliest example is in the list of popes compiled at the time of Pope Vigilius (died 555), which begins "Incipiunt nomina Apostolicorum" (P.L., LXXVIII, 1405). The expression recurs frequently in documents of the Carolingian kings, as well as in Anglo-Saxon writings. Claude of Turin gives a curious explanation — Apostoli custos.

The title is also used in the acts of the Second Anglo-Saxon Council of Cloveshoo, in 747, for Pope Zachary.

At the Council of Reims held in 1049, the Bishop of Compostela was excommunicated "quia contra fas sibi vendicaret culmen apostolici nominis" (because he wrongly claimed for himself the prestige of an Apostolic name), thinking himself the successor of St. James the Greater, and it was thereupon laid down "quod solus Romanus Pontifex universalis Ecclesiæ Primas esset et Apostolicus" (that only the pontiff of the Roman See was primate of the universal Church and Apostolicus).

The popes in Avignon were often referred to -in an absolute sense- as dom (e.g. their palace palais des doms), a french word again derived from the Latin dominus, confusingly also used to address priests of certain orders.

Today the title is found only in the Litany of the Saints. There are also the expressions apostolicatus (pontificate) and the ablative absolute apostolicante 'during the pontificate of'.

It is to be noted that in ecclesiastical usage, the abbreviated form domnus signifies a human ruler as against Dominus, the Divine Lord. Thus at meals monastic grace was asked from the superior in the phrase Jube Domne benedicere, i. e. "Be pleased sir to give the blessing."

Source

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• "Domnus Apostolicus". Catholic Encyclopedia. New York: Robert Appleton Company. 1913. http://www.newadvent.org/cathen/05115b.htm. 

 This article incorporates text from a publication now in the public domain: Herbermann, Charles, ed (1913). Catholic Encyclopedia. Robert Appleton Company.