A person with this name, originally to be betrothed to Frederick Barbarossa, can be seen getting crowned with her husband in the Gospels of Henry the Lion.  One figure of this name inherited the House of Attoni after the assassination of Boniface of Canossa and was held prisoner for a year with her mother Beatrice by Emperor Henry III.  Besides that "Great Countess" of this name, a beatified person with this name from Ringelheim was the wife of Henry the Fowler.  Another
A person with this name, originally to be betrothed to Frederick Barbarossa, can be seen getting crowned with her husband in the Gospels of Henry the Lion.  One figure of this name inherited the House of Attoni after the assassination of Boniface of Canossa and was held prisoner for a year with her mother Beatrice by Emperor Henry III.  Besides that "Great Countess" of this name, a beatified person with this name from Ringelheim was the wife of Henry the Fowler.  Another figure with this name ruled as regent over Normandy with her son Robert Curthose.  The cause of one ruler of this name was supported by David I of Scotland and Robert of Gloucester, a ruler elected in ? Winchester in 1141.  That person also fled a besieged Oxford dressed in a white cape.  For 10 points, give this common name which identifies a female claimant to the throne of England against Stephen of Blois.
A person with this name, originally to be betrothed to Frederick Barbarossa, can be seen getting crowned with her husband in the Gospels of Henry the Lion.  
{Matilda} [or {Maud} or {Mathilde} or {Matilde} or {Mahault}]