... a pope for Florence ... (Charles VI)

[Huck]

From

http://en.wikipedia.org/wiki/Origins_of_the_Papal_Tiara

Pope Nicholas I (858 - 867) is thought to have been the first to unite the princely crown with the white headcovering. However the common belief that Pope Boniface VIII (r. 1294-1303) around 1300 added the second crown, is disputed. While an inventory of the papal treasures in 1295 suggests that the tiara had at that stage only one tier, Pope Innocent III (r. 1198-1216) is represented wearing a two tiered crown in a painting that predates Boniface.
What is certain, from statues of Boniface made during his lifetime and which he saw (and so did not dispute the accuracy of), is that he wore a two-tiered tiara, so the two-tiered tiara dates no later than his reign. Two of these statues of Pope Boniface are in the crypt of St. Peter's Basilica. Why the second tiara was added is not formally stated in any documents, but historians such as James-Charles Noonan suggest that it may have been symbolic of growing papal claims to both temporal and spiritual power, the two tiers in the papal crown contrasting with the single tier of standard monarchical crowns.

Third tier

The first notice of three crowns appears in an inventory of the papal treasures of the year 1315 or 1316. An effigy of Pope Benedict XII, which is on display in Avignon shows him wearing a three-tiered tiara.
The lappets (two decorated strips of cloth which hang at the back of a tiara) are shown in paintings from the 13th century but may well have existed before then.
A fresco in the Chapel of Saint Sylvester (consecrated in 1247) in the church of the Santi Quattro Coronati in Rome seems to represent the Pope wearing a tiara with two bands and with lappets.

.... a little far from the original, but I didn't found a better. Strangely the Bibliotheque Nationale doesn't offer the pope ... censored?

I would say, that the relevant Tiara isn't a tiara with 3 crowns and it isn't a tiara with 2 crowns.



... something like this ...

I don't know much about the early history of Florence. Is there a pope who had had special merits for the city of Florence? Granting special rights or something like this? Perhaps helpful founding the republic?

Any event, which make it logical, that the Florence society of ca. 1450 - 1470 refered to him in honour? A pope, who was honoured with a special church in Florence?

[Huck]

I've found this man and pope, who might fit the conditions:

Nicholas II, bishop of Florence 1048 - 1061, pope since 1058. Worked as pope in Florence and was buried there in Santa Reparata (his own church), a very old place since Roman times, on which some time later Santa Maria del Fiori was started and finished in 1436, also known as the dome of Florence. In 1055 a council took place in Florence (when Nikolaus II. still was bishop), and Florence got cause this event in the following decades various new buildings and developed.

Reasons to remember Nicholas II. just in the time of the Charles VI. Tarocchi (after 1450):
Brunellischi had finished the dome of Florence short before (1436), the council took place there (1439; it surely remembered the earlier council of 1055) and in the time 1447 - 1455 a Pope was chosen with the name Nicholas V., a man, who has spend part of his of his youth in Florence (? perhaps he did decide for the name Nicholas cause the older Nicholas II. ?).
Each local saint profited from the council and his effects, also St. Zenobius, the first bishop of Florence:



Zenobius creates Miracle (1445)
Domenico di Bartolommeo Veneziano


St. Francis, Johannes the Baptist, St. Zenobius and St. Lucy with Madonna (ca. 1445 - 1447)
Domenico di Bartolommeo Veneziano


History of Florence
http://www.aboutflorence.com/history-of-Florence.html

Pope Nicholas II. (1058 - 1061, Bishop of Florence since 1048)
http://en.wikipedia.org/wiki/Pope_Nicholas_II

Santa Reparata, very old place in Florence
http://en.wikipedia.org/wiki/Santa_Reparata_(Florence)

Santa Maria del Fiore (dome of Florence), ready in 1436, at the place of Santa Reparata
http://en.wikipedia.org/wiki/Santa_Maria_del_Fiore

St. Zenobius, early bishop of Florence
http://www.newadvent.org/cathen/15755a.htm