Ethnographer. Born in 1884. He studied Fine Arts in Madrid and Munich. He died in 1940.
Director of the San Telmo Museum in San Sebastián 1919 and 1936. Through Eusko Ikaskuntza, he carried out in 1920 questionnaires for the cataloguing of popular culture, especially pastoralism. He was a member of the utive Committee and vice-treasurer of Eusko Ikaskuntza 1920 and 1936; in 1920, the Permanent Board commissioned him to visit Basque communities in the Americas.
Author of Thoughts on Love and Municipal Museum of San Sebastián (1926). He wrote numerous works published in the Anuario de Eusko Folklore, the International Journal of Basque Studies, Euskalerriaren Alde, and the Book of Gold of the Homeland. 1922 and 1927, he published in the International Journal of Basque Studies an illustrated Basque ethnographic catalogue with terminology in the Basque language (Euskera).