Baron Maurice de Rothschild [d. 1957], Paris. (Duveen Brothers, New York); purchased 11 November 1912 by Peter A. B. Widener, Elkins Park, Pennsylvania, probably as Italian sixteenth century; inheritance from the Estate of Peter A. B. Widener by gift through power of appointment of Joseph E. Widener, Elkins Park, 1942.
- Inventory of the Objects d'Art at Lynnewood Hall, Elkins Park, Pennsylvania, The Estate of the Late P.A.B. Widener. Philadelphia, 1935: 45.
- Works of Art from the Widener Collection. Foreword by David Finley and John Walker. National Gallery of Art, Washington, 1942: 11, as Italian 16th Century (Style of Benvenuto Cellini).
- Stone, Peter. "Baroque Pearls I." Apollo (December 1958): 194-199, fig. 14.
- Neumann, Robert von. The Design and Creation of Jewelry. Rev. ed., New York and Philadelphia, 1972: 13, fig. 3.
- Heiniger, Ernst A. and Jean Heiniger. The Great Book of Jewels. Boston, 1974: 170, color repro.
- Hackenbroch, Yvonne. Renaissance Jewellery. London and Munich: 1979: 251-252, color pl. 31, no. 688.
- Newman, Harold. An Illustrated Dictionary of Jewellery. London, 1981: 118, 119, repro.
- Wilson, Carolyn C. Renaissance Small Bronze Sculpture and Associated Decorative Arts at the National Gallery of Art. Washington, 1983: 165-166, color repro.
- Distelberger, Rudolf, Alison Luchs, Philippe Verdier, and Timonthy H. Wilson. Western Decorative Arts, Part I: Medieval, Renaissance, and Historicizing Styles including Metalwork, Enamels, and Ceramics. The Collections of the National Gallery of Art Systematic Catalogue. Washington, D.C., 1993: 288-291, color repro. 289.
Table-cut stones are in variously worked rectangular box settings. The enamel is damaged in numerous places, especially on the figure of Europa.