Barbastro and its Martyrs During the Spanish Civil War, the Catholic Church suffered great persecution, with 10,000 people killed for their faith. Barbastro, despite its small size, was the diocese with the most martyrs in Spain, 88% of the clergy. “Spain has given cursillos of Christianity, Opus Dei, the Neocatechumenal Way and everything you want, do you know why? Because it has lived a Spanish civil war where more than