Rafael Arnaiz Barón

Rafael Arnáiz Barón, OCSO (9 April 1911 – 26 April 1938), also named María Rafael in religion, was a Spanish Trappist conventual oblate. He studied architecture in Madrid, but decided to cease his studies in favor of the religious life. This was often interrupted due to his struggle with type 1 diabetes and his being called for active military service. But these never hindered his religious call and he did as best as he could to deal with his diabetes through his constant life of reflection and writing on spiritual subjects in his letters. 

Patron saint of Diabetics; World Youth Day