Although sometimes given to Giambologna (Avery and Hall, op. cit.), the present model appears instead to follow a crucifix by Sebastiano Torrigiani, derived from a model by his master Guglielmo della Porta, which is in the church of San Giacomo Maggiore in Bologna.
G. Roversi, 'Gli arredi sacri di San Giacomo Maggiore', in C. Volpe (ed.), Il Tempio di San Giacomo Maggiore in Bologna, Bologna, 1967, pp. 187-214, fig. 268; C. Avery and M. Hall, Giambologna: An Exhibition of Sculpture by the Master and his Followers from the Collection of Michael Hall, Esq., Salander O'Reilly Galleries, New York, 1998, nos. 20-21