Lancaster, R. Kent (1972). "Artists, Suppliers and Clerks: The Human Factors in the Art Patronage of King Henry III". Journal of the Warburg and Courtauld Institutes. 35: 83–85. doi:10.2307/750922. JSTOR750922.
jstor.org
Lancaster, R. Kent (1972). "Artists, Suppliers and Clerks: The Human Factors in the Art Patronage of King Henry III". Journal of the Warburg and Courtauld Institutes. 35: 83–85. doi:10.2307/750922. JSTOR750922.