Deeds of the Emperor Frederick on the Holy Expedition

[2] In both manuscripts, it is found alongside a longer text about Frederick, the Narration of the Oppression and Subjection of Lombardy, an account of the war with the Lombard League culminating in the battle of Legnano in 1176.

[1] It is possible that the author of the Deeds had access to the History of the Pilgrims, since in a few cases he uses very similar wording.

[5] The Deeds may occasionally clarify a reading of the Histories or resolve a discrepancy between them.

[6] Although modern estimates put Frederick's crusader army at about 15,000 men, the Deeds gives its size as "90,000 armed warriors".

According to the Deeds, however, the Turk was an emir who volunteered his services knowing that the emperor could have him beheaded if it turned out he was lying.