Date of birth unknown; died after 385 or 386. He belongs to the group known as the "Cappadocian Fathers", a title which reveals at once his birthplace in Asia Minor and his intellectual characteristics. Gregory was born of a deeply religious family, not very rich in worldly goods, to which circumstances he probably owed the pious training of his youth. His mother Emmelia was a martyr's daughter; two of his brothers, Basil of Cæsarea and Peter of Sebaste, became bishops like himself; his eldest sister, Macrina, became a model of piety and is honoured as a saint. Another brother, Naucratius, a lawyer, inclined to a life of asceticism, but died too young to realize his desires. A letter of Gregory to his younger brother, Peter, exhibits the feelings of lively gratitude which both cherished for their elder brother Basil, whom Gregory calls "our father and our master". Probably, therefore, the difference in years between them was such as to have enabled Basil to supervise the education of his younger brothers. Basil's training was an antidote to the lessons of the pagan schools, wherein, as we know from a letter of St. Gregory of Nazianzus, Gregory of Nyssa spent some time, very probably in his early youth, for it is certain that while still a youth Gregory exercised the ecclesiastical office of rector. His family, it would seem, had endeavoured to turn his thoughts towards the Church, for when the young man chose a secular career and began the study of rhetoric, Basil remonstrated with him long and earnestly; when he had failed he called on Gregory's friends to influence him against that objectionable secular calling. It was all in vain; moreover, it would seem that the young man married. There exists a letter addressed to him by Gregory of Nazianzus condoling with him on the loss of one Theosebeia, who must have been his wife, and with whom he continued to live, as with a sister, even after he became bishop. This is also evident from his treatise "De virginitate".
1 -[Saint Gregory of Nyssa]
2 -[Saint Gregory of Nyssa : Life]
3 -[Saint Gregory of Nyssa : Works]
4 -[Saint Gregory of Nyssa : L’homme des conciles, le conseiller du Prince]
5 -[Saint Gregory of Nyssa : Le recueillement des jours, le partage spirituel]