 Their son and Teodoro's grandfather, Joaquín José de Mas y de Vedruna (1801-1873), sided with the legitimists during the First Carlist War and then went on exile.His son and Teodoro's father, Luis de Mas y Poudevida (1824-1895), as a 13-year-old joined his parent in the legitimist ranks.He then studied geodesy and topography in France, was involved in another Carlist attempt of 1848 and went on exile again.