The Treaty of Mignano of 1139 was the treaty which ended more than a decade of constant war in the Italian Mezzogiorno following the union of the mainland duchy of Apulia and Calabria with the County of Sicily in 1127. In 1143, Innocent refused to recognise the treaty, but Roger sent Robert of Selby to march on papal Benevento. Mignano was reaffirmed. In 1156, by the Treaty of Benevento, the tribute to the pope of 600 schifati agreed upon by Roger II in 1139 was affirmed and another 400 schifati was added for newly conquered lands.