Giovanni Codagnello

[3] On 31 March 1202, he drew up a treaty of peace between, on the one side, Piacenza and Milan and, on the other, Pavia.

[4] In 1226, Codagnello campaigned for the restoration of the Lombard League and Piacenza's joining it.

It is probable that Codagnello spent the years 1230–1235 working on his history and died not long after.

It is contained in a single parchment manuscript, now in Paris, Bibliothèque nationale, MS lat.

[4] It contains ten distinct texts, some authored or edited by Codagnello and others merely copied by him:[6]

The underlined text reads: a codagnello seriatim dicta iohanne – "by Codagnello, at the same time called John".