È stato suggerito che la moglie di Raedwald fosse stata in precedenza sposata a un membro di questa famiglia e che Sigeberht fosse (come afferma Guglielmo di Malmesbury) figliastro di Raedwald. ###>It has been suggested that Rædwald's queen had previously been married to a member of the Essex royal family and that Sigeberht was Rædwald's stepson, as was stated by William of Malmesbury in the 12th century.