William VI the Fat Poitou of Aquitaine
, Duke of Aquitaine, Count of Poitiers, was born 1004
to William V of Aquitaine (969-1030)
and Almodis de Gevaudan (?-?)
and died 1038
of unspecified causes. Notable ancestors include Charlemagne (747-814)
. Ancestors are from France
William died childless according to Wikipedia, but Genealogie Quebec has a daughter, married to Geoffroi I Rudel de Blaye.