Benvenuto Cellini worked almost ten years on this bronze (1545-1554). His wax design was immediately approved by Cosimo I de' Medici. He met numerous difficulties which, according to his autobiography, almost brought him to the brink of death. The casting of this bronze statue was several times unsuccessful. When attempting again, the melting furnace got overheated, spoiling the casting of the bronze. Cellini gave orders to feed the furnace with his household furniture and finally with about 200 pewter dishes and plates, and his pots and pans. This caused the bronze to flow again. After the bronze had cooled, the statue was finished, except for three toes on the right foot. These were added later.