This lithograph with tint stone by Victor Petit depicts a Gothic window from an ancient convent in Barcelona, exemplifying the architectural detail that was the focus of his ambitious portfolio documenting medieval French and Iberian monuments. The print showcases Petit's skilled rendering of ornamental stonework and tracery, characteristic of 15th and 16th century ecclesiastical architecture. As plate 54 from a series of 100 similar works, this image represents the systematic cataloguing of European architectural heritage that was popular among 19th century artists and antiquarians.