Confraternity book

A confraternity book (German: Verbrüderungsbuch, Latin: liber confraternitatum or confraternitatis), also called a liber memorialis (memorial book) or liber vitae (book of life), is a medieval register of the names of people who had entered into a state of spiritual brotherhood (confraternity) with a church or monastery in some way, often by visiting it in the capacity of a pilgrim.

Persons named in such a book were actively remembered in the prayers of the priests or monks.

So-called Jahrtagsbücher (year books) are in many ways their successors.

Confraternity books are a rich source for prosopography and historical linguistics of the early Middle Ages.

The following is a list of some earlier medieval confraternity books: