Juan de Dicastillo (28 December 1584 â 6 March 1653) was a Spanish Jesuit theologian. He was born in Naples. He entered the novitiate of the Society of Jesus in 1600, and was professor of theology for twenty-five years at Toledo, Murcia, and Vienna. He died in Ingolstadt.
In moral theology, Dicastillo followed the principles of probabilism. His principal works are: