BRONZE

Bronze is an alloy of tin & copper (sometimes also containing a little lead).  Bronze expands and then contracts when solidifying, making it ideal for casting.

Cast bronze can be decorated by such techniques as engraving, inlaying, enamelling, demascening, niello work and gilding.  When used for doors, individual bronze panels or groups of panels can be secured to a wooden frame, or doors can be cast as a single unit.

Bronze is not the same as Brass, which is an alloy of zinc and copper.

Medieval metal furnishings and artworks were particularly vulnerable because of the temptation to melt them down to make other furnishings or, better still, guns.

ANCIENT ROMAN BRONZE DOORS

Rare survivors from the Ancient Rome are the massive bronze doors of the Pantheon in Rome, which date from about 125.  They are not decorated and always in shadow, so you won't find many photos around.

The central doors of Saint Mark's Cathedral Venice originated in Byzantium (Constantinople) a bit later than those of the Pantheon, and were souvenired from there by the 4th Crusade in the early 1200s.

1000s - BRONZE DOORS FROM CONSTANTINOPLE

The earliest "post-Roman" bronze doors now in existence in Italy were also made in Constantinople.  They owe their existence to the merchant Pantaleone of Amalfi, who with his son Mauro ran a profitable Amalfi-Constantinople trading operation.

The first of their door gifts was as you would expect, given to the Cathedral of Amalfi itself.  It was made in Constantinople around 1060 by Symeon of Syria, is still in place, and includes four panels with images of saints in inlaid silver, and remaining panels decorated with crosses.

Amalfi Cathedral Bronze Door

Photo © Holly Hayes, Sacred Destinations

In 1066, as Gugliemo was subduing the Poms at Hastings, Pantaleone and Mauro had another door made in Constantinople, this time a gift for for the great Abbey of Montecassino.  This door, which is engraved with the names of the possessions and churches of the abbey, has survived and is now the middle of three door sets giving access to the church.

Montecassino Abbey Bronze Church Door

Photo from (English) Guide to the Abbey of Montecassino

1070 saw the boys from Amalfi commissioning another Constantinople door from Stavrakios (or maybe Teodoro), this one destined for the Major Basilica of San Paolo fuori le Mura in Rome.  This is a full on narrative door, containing 54 panels of scenes from the old and new testaments, and is now restored and located inside the Porta Santa on the right side of the main facade.

Detail of Bronze Door Panels - San Paolo fuori le Mura, Rome

Photo from "The Major Basilicas of Rome" by Roberta Vicchi

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The fourth and last of the gifted Byzantine doors dates from 1076, and was destined for the cave sanctuary of Monte Sant'Angelo in the Gargano.  These doors contain 24 panels depicting a variety of angel episodes from Old and New Testaments and later church and grotto history.

Bronze door panel - Monte Sant'Angelo, Gargano (Puglia)

Photo from "L'Angelo la Montagna il Pelligrino"

Unrelated to the Amalfi merchants, Salerno Cathedral has a set  of  bronze doors acquired from Constantinople in 1099, and Benevento Cathedral has a magnificent pair dating from the 1100s.  No photos of these yet.

1100s - ITALIAN CRAFTSMEN TAKE OVER THE BRONZE DOOR BUSINESS

By the early 1100s the Italians had worked out how to do home made bronze doors.  The oldest survivors seem to be part of the doors of San Zeno, Verona, and the doors made in Melfi in 1111 for the Mausoleum of Bohemond at Canosa Cathedral (North Puglia) (no photos yet). 

The earlier more primitive left had panels and a few of those on the right of the doors of Verona's San Zeno church are thought to have been made in the earlier 1100s.  The balance of the 55 cast bronze panels on the right hand door are of a more sophisticated design and were probably made by a second workshop in the late 1100s.

The bronze doors on the west and south facades of the Cathedral of Troia were made by Oderiso di Benevento between 1119 and 1127.

Troia Cattedrale, Puglia - West door panels including self portrait of the maker, Oderiso

Troia Cattedrale, Puglia - South door panels by Oderiso, with image of the donor Bishop Gugliemo

The Trani master, Barisano da Trani, was responsible for the bronze doors of Trani Cattedrale (now displayed inside, they include a rare artist "self portrait" and the panel depicting Saint George shown below).

Panel depicting San Giorgio - Bronze doors of Trani Cattedrale by Barisano da Trani

Barisano also made the main bronze doors for the cathedral of Ravello (no photos yet), and the north doors of Monreale Duomo (near Palermo in Sicily), both of which which he made in Italy in the 1180s.  Barisano used a technique of low relief casting finished by chiselling. 

Monreale Duomo - North Doors by Barisano da Trani - Photo from Cathedral Guide

The main West doors of Monreale, with a much more sophisticated Adam & Eve to Resurrection cycle of Images, were made by a Tuscan - Bonanno da Pisa - in 1189.  Bonanno had earlier done west doors for the Pisa duomo, but sadly these were destroyed in the fading years of the 1500s. 

Detail from Bonanno's West Door of Monreale Duomo - source unknown

In Abruzzo, just north of Puglia, the bronze doors of the powerful Abbazia di San Clemente a Casauria, showing crosses, abbots, rose patterns and 14 castles the abbey owned, date from 1191.

Panel from the door of the Abbazia di San Clemente in Abruzzo

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THE RENAISSANCE (1400s)

By the time the Renaissance came round two hundred years later, Italian metalworking had become more commonplace and sophisticated - especially as several of the artistic players had originally trained as goldsmiths.

So for the last photos on this page we chose the greatest bronze door of them all, Ghiberti's East Door of the Florence Baptistery, described by Michelangelo as "The Gates of Paradise".

Lorenzo Ghiberti (1378 - 1455 (77))

Self portrait in the Baptistery East Door

Joseph is sold into slavery

Original Baptistery East Door Panel in the Museo dell'Opera del Duomo, Florence