Martinianus was a slave of a Vandal landowner who wanted to marry him off to his other slave Maxima. After the marriage, the two decide to live a life of chastity and asceticism. Their owner not only wants them to consummate the marriage, but also wants them to be baptised in the Homoian church. They refuse and are tortured. Later, Maxima is freed and enters a women's monastery, while Martinianus (and his brothers, whom he has also persuaded to lead an ascetic and monastic life) are exiled by the Vandals to the Berber regions under the rule of the king Capsur.
I.36–37
The disciples of Christ, seeing the many forbidden and sacrilegious sacrifices carried out by the pagans, began by their preaching and way of life to invite them to the knowledge of the Lord our God, and by this means they gained an enormous multitude of pagan barbarians for the Lord Christ, in a place where the fame of the Christian name had hitherto been spread by no-one. Then they gave thought as to what should be done, so that the field which had now been cultivated and cleared ofgrass by the ploughshare of preaching might receive the seed of the gospel and be watered by the rain of holy baptism. They sent messengers across the long roads of the desert. At last they came to a Roman town and the bishop was asked to send a presbyter and junior clergy to the believing people. The pontiff fulfilled their request with joy: a church of God was built, a great throng of barbarians was baptized all together, and from those who had been wolves an abundant flock of lambs was multiplied.
(trans. Moorhead 1992: 17, lightly adapted)