Santiago Martínez Hernández holds a doctorate in Modern History from the Universidad Complutense in Madrid, where he is currently a lecturer. His studies focus on court politics of the reigns of Philip II and Philip III, and he has published El marqués de Velada y la corte en los reinados de Felipe II y Felipe III (2004) and Governo, Politica e Representaçoes do Poder no Portugal Habsburgo e nos seus Territórios Ultramarinos (1581-1640) (2011), among other studies, as well as twenty or so articles and chapters in books.