EuroAristo Project Note
Roger is currently (20130726) identifying Cuthwine's ancestor (or perhaps not) Cerdic as the upper limit of Wessex management. Filiations which are probably legendary will be treated as real, with notes to that effect in the biographies of Cerdic's "descendants."
No mother or spouses are reliably attested for Cuthwine. Any linking of a mother or a spouse without the express agreement of the EuroAristo project in the G2G forum will be disconnected.
Roger has taken the decision to make Ceol aka Ceolric the father of King Cynegils. The sources conflict; see the link below.
Sources
FMG's Medieval Lands entry for Cerdic and his sons
Abt 0556 - 0594 (38 years)