A conversation between Dr. Kathryn Santner and Dr. Lauren Kilroy-Ewbank in front of _Portrait of Antonio de Ulloa y de la Torre-Guiral_ , c. 1768-70, oil on canvas, 37 1/2 x 31 1/2 inches; and _Portrait of Francisca Ram irez de Laredo y de Ulloa_, c. 1768-70, oil on canvas, 37 1/2 x 31 1/2 inches (Collection of Carl & Marilynn Thoma) This video was made possible through the generous support o
License: CC BY-NC-SA by Khan Academy