He was made Duke of Apulia (as Roger V),[1] probably in 1189, shortly after his father's accession.
[2] Follari were minted at Messina bearing both Tancred's and Roger's names as kings.
[3] In 1193, Tancred arranged for Roger to marry Irene Angelina, daughter of the Byzantine emperor Isaac II Angelos.
[4] On 20 November 1194, Holy Roman Emperor Henry VI entered Palermo and William was deposed on 25 December.
In 1197 Roger's widow, Irene, married Henry VI's brother, Duke Philip of Swabia.