History
The custom of depicting the Blessed Virgin Mary adorned with a crown became common both in the East and in the West since the Council of Ephesus in 431. Christian artists often "portrayed Mary as Queen and Empress seated upon a royal throne adorned with royal insignia, crowned with the royal diadem and surrounded by the host of angels and saints in heaven, and ruling not only over nature and its powers but also over the machinations of Satan." The custom of placing precious crowns on statues of the Virgin Mary stems from popular devotion, was practised by pious religious and laymen, and has spread increasingly since the end of the 16th century. It is related to the offering of an ex voto. As this custom became more and more widespread, in the 17th century a separate ''Ritus servandus in coronatione imaginis Beatae Mariae Virginis'' emerged, which was incorporated into the Roman Pontifical in the 19th century. The popes, "favoring such types of popular devotion", often crowned, either by own hand or through representatives, images of the Mother of God which were already outstanding by reason of public veneration.Pius XII, ''Ad Caeli Reginam'', 1954, 33. In the present, the diocesan bishops decide in agreement with the local congregation whether an image should be solemnly crowned. The coronation of particularly venerated images of supra-regional importance is the responsibility of the pope. He or a cleric on his behest celebrates the coronation, usually in a Holy Mass or in a Marian vespers of the Liturgy of the Hours. The coronation can be even renewed, for example on the occasion of an anniversary.References
See also
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