Burgos is a city in Spain in the historic region of Castile. Its prosperity, based on the wool trade, lasted well into the sixteenth century and contributed to the building of a number of monasteries and churches. But due to the later economic decline of Castile, to wars, and particularly the Peninsular War, Burgos had lost most of its luster by the time this picture was published.
Ursulines are members of a Roman Catholic religious order of women, founded in Italy in 1535. It is mainly dedicated to the education of girls and is placed under the protection of St. Ursula.
The caption reads in the original French:
Ruines du couvent des ursulines, à Burgos, en Castille.