The Rythmus de captivitate Ludovici imperatoris ("Poem on the Captivity of Emperor Louis") is a short alphabetic
acrostic poem in
Middle Latin lamenting the capture of
Louis II,
King of Italy and
Emperor of the Romans, on 15 August 871. The poem is preserved in a ninth-century manuscript, Veronensis XC (85).[1]
In February 871, after
a nearly five-year campaign, Louis conquered the
Emirate of Bari and captured the emir, Sawdan. He returned in triumph to
Benevento, but his presence there and that of the Empress
Engelberga, alienated the local nobility.
Adelchis, the
prince of Benevento, put the imperial couple under arrest. They were released a month later on 18 September through the negotiations of the
bishop of Benevento. As a condition of their liberty, Louis swore an oath never to return to Benevento.[2]
The Rythmus de captivitate Ludovici imperatoris places the blame for Louis's humiliation on his own captive, Sawdan, who is said to have prodded Adelchis into action. The captive emir is the main villain of the piece.[3]
^Barbara M. Kreutz, Before the Normans: Southern Italy in the Ninth and Tenth Centuries (Philadelphia: University of Pennsylvania Press, 1991), pp. 46–47.
^Lorenzo M. Bondioli, "Islamic Bari between the Aghlabids and the Two Empires", The Aghlabids and their Neighbors (Leiden: Brill, 2018), p. 488, and ibid., "From the Frontier Cities to the City, and Back? Reinterpreting Southern Italy in the De administrando imperio", From Constantinople to the Frontier: The City and the Cities (Leiden: Brill, 2016), p. 381. Blame is also laid on Sawdan by the south Italian Chronicon Salernitanum and the Byzantine De administrando imperio and Vita Basilii.
Russo Mailler, Carmela. "La politica meridionale di Ludovico II e il Rythmus de captivitate Ludovici imperatoris." Quaderni Medievali, 14 (1982), pp. 6–27.