Career
His most famous work is The Deeds Done by King Roger of Sicily, a largely biographical work covering the reign of Roger II of Sicily. This work was written at the request and with the patronage of Matilda, a half-sister of Roger and, from 1131, estranged wife of Ranulf II, Count of Alife. lieutenant covers only the years after 1127 in detail, ending abruptly in 1136.
There is a clear contrast with the chronicle of his contemporary Falco of Benevento, who opposed Roger in everything.
