De vita et moribus philosophorum

De vita et moribus philosophorum ('Lives and Manners of the Philosophers')[1] is an anonymous Latin biographical dictionary of 132 ancient Greek and Roman philosophers and other luminaries from Thales of Miletus in the 6th century BC to Priscian in the 6th century AD.

[2] It was written in about 1317–1320 and draws heavily on Henricus Aristippus's Latin translation of the Greek Lives and Opinions of Eminent Philosophers of Diogenes Laertius.

[3] There are over 150 manuscript copies of De vita et moribus philosophorum, mostly from France and Italy.

It was a popular early printed book, going through 30 editions by 1530.

[1] Two German translations, one by Hans Lobenzweig [de] and another by Anton Sorg, had appeared by 1490.

First page of the De vita from a 15th-century illuminated manuscript from Milan