 Complete the following phrase:  Luis paternal family was related to Old Castile; one of his ancestors gained recognition as member of the Cura Merino unit, fighting the French during the War of Independence; he served under the same commander also during the First Carlist War. Later on the family found itself on the descendant path and Luis grandparents were referred to as laboradores modestos. His father, Mariano Herdo Ruiz 1861-1913, originated from Riaza in the province of Segovia; he studied medicine but upon graduating has never practiced; instead, he made a living by trading arts, mostly paintings and sculptures. Heavily engaged in preparing the Spanish pavilion for the 