It has been suggested that Cearl's kingship suffered a catastrophe between the time of the Battle of Chester around 616 and the appearance of his successor, Penda, son of Pybba.
Suxeriuse que a liñaxe de Cearl sufriu un desastre entre a Batalla de Chester ao redor de 616 e a emerxencia do seu sucesor, Penda, fillo de Pybba.