# Relief on the north side of the Campanile: 6. Arithmetic and Geometry \(lower register\) [View the canonical artwork record]() ## Artwork - Artist: [ROBBIA, Luca della]() - Date: 1451-1500 - Technique: Marble ## Commentary Relief on the north side of the Campanile: 6. Arithmetic and Geometry \(lower register\) 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 fourth of the five panels depicts Arithmetic and Geometry, represented by Pythagoras and Euclid. 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]()