The phrase Cappadocian Fathers is usually used to refer to St Basil of Caesarea (modern Kayseri in central Anatolia), his brother St Gregory of Nyssa (under the metropolitan jurisdiction of Caesarea) and Gregory of Nazianzenus (Archbishop of Constantinople in AD 380/381). They are most famous for their involvement in fourth-century Trinitarian disputes and, in the case of St Basil, their development of a monastic ideology which became dominant in later Orthodox tradition while there has been a recent interest in exploring their views on the definition of Christian virginity. Their writings are quoted in the Collectio canonum Hibernensis of early eighth-century date but the nature of their influence on Irish church thinking has yet to be studied in any depth. This paper builds on an earlier paper suggesting their interest in pragmatic charity within a community setting may have had a particular influence on Irish monastic thinking and seeks to set the Collectio evidence in a wider context.