Saint Roque González de Santa Cruz was born in Asunción, the capital of Paraguay, on 17 November 1576. He came from a noble Spanish family but also spoke the local language, Guaraní, from an early age.

Gregory of Nyssa was the younger brother of St Basil of Caesarea (“St Basil the Great”). He, Basil and Gregory Nazianzen, “Gregory of Nazianzus”, are known as the Cappadocian Fathers. They were active after the Council of Nicaea, working to formulate Trinitarian doctrine precisely and, in particular, to pin down the meaning and role of the least humanly comprehensible member of the Trinity, the Holy Spirit. Basil was the leader and organizer; Gregory of Nazianzus was the thinker, the orator, the poet, pushed into administrative and episcopal roles by circumstances and by Basil; and Gregory of Nyssa, although not a great stylist, was the most gifted of the three as a philosopher and theologian. Together, the Cappadocian Fathers hammered out the doctrine of the Trinity like blacksmiths forging a piece of metal by hammer-blows into its perfect, destined shape. They were champions – and successful champions – of orthodoxy against Arianism, a battle that had to be conducted as much on the worldly and political plane as on the philosophical and theological one.

Red is the colour of fire and of blood. Liturgically, it is used to celebrate the fire of the Holy Spirit (for instance, at Pentecost) and the blood of the martyrs.