Guy I of Spoleto

In 843, he interfered in the Beneventan civil war on the side of his brother-in-law Siconulf. He acted as arbiter several times for high fees, but only Lothair's successor, Emperor Louis II, could end the strife. In 846, he alone succeeded in driving the Saracens out of Latium after their sack of Saint Peter's Basilica in Rome.^[3]

In 858, he supported Adhemar of Salerno against the pretended Count of Capua, Lando I. By his intervention he secured the Liri Valley, southern Lazio, with towns of Sora and Arpino taken from the count's brother Landenulf of Teano.^{[citation needed]}

• Jackman, Donald C. (2008). Ius hereditarium Encountered II: Approaches to Reginlint. Editions Enlaplage.
• Kreutz, Barbara M. (1991). Before the Normans: Southern Italy in the Ninth and Tenth Centuries. University of Pennsylvania Press.
• Llewellyn, Peter. Rome in the Dark Ages. London: Faber and Faber, 1970. ISBN 0-571-08972-0.
• di Carpegna Falconieri, Tommaso. Guido, in Dizionario biografico degli italiani, 61, Roma: Istituto della Enciclopedia italiana, 2003, p. 352-354.

This article about an Italian Duke is a stub. You can help Wikipedia by adding missing information.

• v
• t
• e