This sizeable collection of letters are analysed in company with other, better-known, writings about nuns from Gregory’s dialogi. In the introduction Martyn argues that his upbringing, dominated by his mother and four devout aunts, might reasonably have inculcated in him a deep and abiding concern for women, the religious in particular. This is evidenced by his friendships with Theoctista and Gordia, the sisters of the Byzantine Emperor Maurice, and with his wife, the pious Constantina. and with a number of abbesses, including Respecta (from Marseilles) and Talasia (from Autun). Gregory’s deep interest in the religious life of women, and his concern for their safety and wellbeing, are apparent throughout the letters. Martyn’s translations are clarified and enhanced by a commentary.