The advent of the Franco regime saw the restoration of the church's rights. During the Franco years, Roman Catholicism was the only religion to have legal status; other worship services could not be advertised, and only the Catholic Church could own property or publish books. The Government not only continued to pay priests' salaries and to subsidize the Church, but it also assisted in the reconstruction of church buildings damaged by the war. Laws were passed abolishing divorce and civil marriages as well as banning abortion and the sale of contraceptives. Homosexuality and all other forms of sexual permissiveness were also banned. Catholic religious instruction was mandatory, even in public schools. Franco secured in return the right to name Roman Catholic bishops in Spain, as well as veto power over appointments of clergy down to the parish priest level. In 1953 this close cooperation was formalized in a new Concordat with the Vatican that granted the church an extraordinary set of privileges: mandatory canonical marriages for all Catholics; exemption from government taxation; subsidies for new building construction; censorship of materials the Church deemed offensive; the right to establish universities, to operate radio stations, and to publish newspapers and magazines; protection from police intrusion into church properties; and exemption of military service.
The proclamation of the Second Vatican Council in favor of religious freedom in 1965 provided more rights to other religious denominations in Spain. In the late 1960s, the Vatican attempted to reform the Church in Spain by appointing interim, or acting, bishops, thereby circumventing Franco's stranglehold on the country's clergy. Many young priests, under foreign influence, became worker priests and participated in anti regime agitation. Many of them ended as leftist politicians, with some imprisoned in the Concordat prison reserved for priest prisoners. In 1966 the Franco regime passed a law that freed other religions from many of the earlier restrictions, although it also reaffirmed the privileges of the Catholic Church. Any attempt to revise the 1953 Concordat met the dictator's rigid resistance.