Career
In 1080/1081, however, as Robert Guiscard was preparing to cross the Adriatic and invade the Byzantine Empire, Roger defected to the Byzantines and informed their emperor, Alexios I Komnenos, of the Norman preparations. He became the ancestor of the Raoul/Ralles family. Both Anna Komnene, in her Alexiad, and Nicholas Kallikles, in a eulogy written for Roger"s funeral, relate Roger"s subsequent career under Alexios: receiving the rank of sebastos, he fought with the emperor against the Pechenegs and the Seljuk Turks, as well as against the Normans.
Later, he was also one of the signatories of the Treaty of Devol which ended hostilities between Bohemond and Byzantium.
Both Byzantine and Western chroniclers praised Roger for his bravery and for his eloquence. Family
Roger married an unknown lady of the Dalassenos family, which was closely tied to the imperial Komnenos dynasty.
He had at least one confirmed son, the Caesar John Rogerios Dalassenos.
