A representation of the triregnum combined with two crossed keys of Saint Peter is used as a symbol of the papacy and appears on papal documents, buildings and insignia, and on the flag of Vatican City.
[11] Innocent III is represented with an early tiara in a fresco at Sacro Speco and on a mosaic from Old Saint Peter's, now in the Museo di Roma.
[13] A similar tiara, conical and with only one crown, is seen worn by pope Clement IV in frescoes from the 13th century in Pernes-les-Fontaines, France.
[14] The second crown is said to have been added by Pope Boniface VIII as signifying both his spiritual and temporal power, since he declared that God had set him over kings and kingdoms.
[17] The third crown was added to the papal tiara during the Avignon Papacy (1309–1378), giving rise to the form called the triregnum.
[citation needed] Lord Twining wrote of a tiara of Pope Boniface VIII that became known as the Tiara of Saint Sylvester: Under Boniface VIII (1294–1303) the hood of the regnum was lengthened and the circlet was greatly enriched with precious stones, while toward the end of his papacy a second circlet was added.
The Archbishop of Bordeaux was chosen and took the title of Clement V. He removed the papal seat from Rome to Avignon and the tiara was brought to Lyons from Perugia for his coronation on 14 November 1305.
In 1378 Robert of Geneva was elected anti-Pope taking the style Clement VII, and he removed the tiara from Avignon.
When the Spaniard, Pedro de Luna, was elected anti-Pope in 1394 styling himself Benedict XIII, he took the tiara from Avignon to Spain, where it remained until Aphonso V of Aragon failed in his attempt to renew the schism, and on his withdrawal of support from the anti-Pope Clement VII in 1419, the tiara was returned to Rome.
This was no doubt suggested by the Donation of Constantine, but it now came to be used only at the coronation of popes, starting with Gregory XI in 1370 and his successor Urban VI in 1378.
"[22] Like a bishop's mitre, a papal tiara has attached to it two lappets,[23][24][25][26] a pair of streamers[26] or pendants that in Latin are called caudae or infulae.
[15] These are usually attached at the rear of the tiara, again as on a bishop's mitre, although the mosaic of Pope Clement VIII wearing a triregnum shows them placed forward of the ears.
[citation needed] The lappets, sometimes called "fanons" according to the 2nd definition of the word, are likely relics of the cord used to secure the original form of linen cap or turban around a bishop's head.
[30] The tiara was purchased by Catholics in the United States and is now kept in the Basilica of the National Shrine of the Immaculate Conception in Washington, D.C.[29][31] It is on permanent display in Memorial Hall along with the stole that Pope John XXIII wore at the opening of the Second Vatican Council.
[32] Paul VI's abandonment of use of one of the most striking symbols of the papacy was highly controversial with many Traditionalist Catholics, some of whom continue to campaign for its reinstatement.
[33] Certain voices went so far as to brand Paul VI an antipope, arguing that no valid pope would surrender the papal tiara.
It was officialized in 1996 within the apostolic constitution Universi Dominici gregis[36] after which Benedict XVI and Pope Francis did not have a coronation rite with the Papal Tiara.
"[38] Paul VI's 1975 Apostolic Constitution Romano Pontifici Eligendo on the manner of electing the Pope, still envisaged that his successors would be crowned.
[39] Pope John Paul II, in his 1996 Apostolic Constitution Universi Dominici gregis, removed all mention of a papal coronation, replacing it with a reference to an "inauguration".
[45][46] In May 2011, Pope Benedict XVI received a special tiara by Dieter Philippi,[47] a German chief executive officer of a telecommunication company who had commissioned the gift from an artisan workshop located in Sofia.
Pope Paul VI's "Milan tiara" was donated to and is on display in the crypt church of the Basilica of the National Shrine of the Immaculate Conception in Washington, D.C., United States of America.
[17] The words that were used when popes were crowned were: Accipe tiaram tribus coronis ornatam, et scias te esse patrem principum et regum, rectorem orbis in terra vicarium Salvatoris nostri Jesu Christi, cui est honor et gloria in saecula saeculorum ("Receive the tiara adorned with three crowns and know that thou art father of princes and kings, ruler of the world, vicar on earth of our Saviour Jesus Christ, to whom is honour and glory for ever and ever").
[57] Yet another interpretation suggested by Archbishop Cordero Lanza di Montezemolo, who designed Pope Benedict XVI's tiara-less coat of arms, was "order, jurisdiction and magisterium",[58] while a further theory links the three tiers to the "celestial, human and terrestrial worlds," which the pope is supposed to symbolically link.
However, a tiara was worn during the solemn entrance and departure processions, and one or more could be placed on the altar during the elaborately ceremonial Pontifical High Mass.
As with all other modern coronations, the ceremony itself was only symbolic, as the person involved became Pope and Bishop of Rome the moment he accepted his canonical election in the papal conclave.
In 2005, Pope Benedict XVI took a step further and removed the tiara from his papal coat of arms, replacing it with a mitre.
[citation needed] The 16th-century Ottoman Sultan Suleiman the Magnificent commissioned Venetian craftsmen to make a 4-tiered tiara modeled on the papal design, to demonstrate that his power and authority as Caliph exceeded that of the Pope.
This was a most atypical piece of headgear for an Ottoman sultan, which he probably never normally wore, but which he placed beside him when receiving visitors, especially ambassadors.