Penda, who became king of Mercia in about 626 and is the first king named in the regnal lists of the Anglian collection, and at the same time the last pagan king of Mercia, gave rise to a dynasty that supplied at least eleven kings to the throne of Mercia.
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Several place names in England have been suggested as derived from the name of with Icel or the Iclingas, including Icklingham, Ickleford, Ickleton and Ixworth.