The Seminary of St. Pius X (Latin: Seminarium Sancti Pii Decimi), or St. Pius X Seminary (SPXS), is a Filipino Roman Catholic secondary school and seminary in the Lawaan hills, Roxas City, Capiz, in the Philippines, run by the Catholic priests of the Archdiocese of Capiz. The seminary and its surrounding areas comprise some three hectares of rocky hills. The late Cardinal Sin was the first rector of the school. In 1999, the college (Philosophy and Theology) of St.