# Relief on the north side of the Campanile: 7. Blacksmithing \(lower register\) [View the canonical artwork record]() ## Artwork - Artist: [ROBBIA, Luca della]() - Date: 1451-1500 - Technique: Marble ## Commentary Relief on the north side of the Campanile: 7. Blacksmithing \(lower register\) 1437-39 Marble Museo dell'Opera del Duomo, Florence This relief is one of the five hexagonal panels in the lower register of the socle on the north side of the Campanile which were added after removal of the raised passageway between the campanile and the cathedral. These panels were executed by Luca della Robbia in 1437-39. The fifth of the five panels depicts Arithmetic and Geometry, represented by Tubalcain, who is mentioned in the Bible, in Genesis 4:22, as the first blacksmith. He is stated as the "forger of all instruments of bronze and iron". A descendant of Cain, he was the son of Lamech and Zillah. Tubalcain was the brother of Naamah and half-brother of Jabal and Jubal. The reliefs on the Campanile are described in the <a onclick="return OpenOther\('/html/p/pisano1/andrea/2campani/index.html'\)" href="/html/p/pisano1/andrea/2campani/index.html">section of Andrea Pisano.</a> ## Related artworks - [Apostle Andrew]() - [Apostle Bartholomew]() - [Apostle James the Great]() - [Apostle James the Less]() - [Apostle John]() - [Apostle Judas Thaddaeus]() - [Apostle Matthew]() - [Apostle Matthias]() - [Apostle Peter]() - [Apostle Philip]() - [Apostle Simon]() - [Apostle Thomas]() ## Attribution [Web Gallery of Art]()