來源
[According to an official translated document signed by W. Wilson, Royal Danish Vice Consul, San Francisco and dated 8 June 1881 (the original document in Danish dated 26 September 1876):
Private Collection, Munich.
King Christian VIII of Denmark and Norway (1786-1848), as Leonardo da Vinci, and by descent to King Frederick VII of Denmark and Norway (1808-1863), as Leonardo da Vinci, and by descent to his third wife, Louise Countess Danner, as Leonardo da Vinci.
Charles de Lucy.]
Marian Thompson, Santa Rosa, California, 1941, as by Leonardo da Vinci, from whom purchased by
Frank N. Killam, Sacramento, California, as by Leonardo da Vinci, and by descent to the present owner.