Battle of Nocera between Ranulf II of Alife and Roger II of Sicily.

The Battle of Nocera or Scafati was the first major battle of Roger II of Sicily and the first of his two major defeats at the hands of Count Ranulf of Alife.

Ranulf II was the count of Alife and Caiazzo, and duke of Apulia. He was a member of the Italo-Norman Drengot family which ruled the Principality of Capua for most of the century between 1050 and 1150. Ranulf's wife, Matilda, was the sister of King Roger II of Sicily.

Roger II or Roger the Great was King of Sicily and Africa, son of Roger I of Sicily and successor to his brother Simon. He began his rule as Count of Sicily in 1105, became Duke of Apulia and Calabria in 1127, then King of Sicily in 1130 and King of Africa in 1148.