Overview
Sibylla of Conversano (d. 18 March 1103) was a wealthy Norman heiress, Duchess of Normandy by marriage to Robert Curthose. She was regent of Normandy during the absence of her spouse.
Life
She was the daughter of Geoffrey of Brindisi, Count of Conversano and a grandniece of Robert Guiscard.
During the winter of 1096-97 while Robert Curthose was in Apulia awaiting transport on the First Crusade, he probably began negotiations to marry the heiress, Sibyl of Conversano. Orderic Vitalis claims Robert 'fell in love' with Sibyl and further the chronicler called her 'truly good in character' and also wrote she was 'endowed with many virtues and lovable to all who knew her'.
From Wikipedia (CC BY-SA 4.0).