Francisco de Cubas was a notable Spanish architect and engineer born in 1827. He is best known for his contributions to the design of various public buildings and infrastructure in Spain. His work often combined elements of Neoclassicism and Eclecticism, reflecting the architectural trends of his time. One of his most significant projects is the Palacio de Cristal in Madrid, which showcases his innovative use of glass and iron. De Cubas also played a role in the development of urban planning in Spain, influencing the design of parks and public spaces during the 19th century.