 The following year, together with Amlaíb Conung, they raided Máel Sechnaill's lands in Mide, but soon afterwards Cerball was compelled to submit again to Máel Sechnaill.In 860 Cerball defeated a force of Norse who were raiding in Osraige, and later in the year he joined Máel Sechnaill on campaign against Áed Finnliath in the north of Ireland.Máel Sechnaill died in 862 to be succeeded by Áed Finnliath, who married his widow, Cerball's sister Land.