Gerard de Fachet was born in Chalons in 1205 and died circa 1271. He entered the Order of Preachers around 1225 and spent the rest of his life devoted to God as a Dominican friar. In this work, he writes of the life of Saint Dominic and the early friars of the Order, seeking to kindle a desire to imitate these great men of Faith and sanctity of life.
The book was written as a result of a request from the General Chapter in 1256 which was anxious to collect eye witness accounts of the doings and sayings of the early friars before the first generation of the order died. The text of the Vitae Fratrum is based largely on the submissions made by friars as well as separate writings from Bartholomew of Trent and Jordan of Saxony, covering in all the period from about 1206 to 1260.