In 1199, Sibylla arrived in France with her daughters. Constance and Henry had both died shortly after conquering Sicily, leaving the kingdom to their infant son,
Frederick. Sibylla intended for Elvira, her eldest surviving child, to marry a French nobleman powerful enough to press Elvira's claim on the Kingdom of Sicily against Frederick's
regents. King
Philip II of France convened a council in
Melun, where it was decided that Elvira should marry Count
Walter III of Brienne. Shortly after the marriage, Elvira, her husband and her mother all asked
Pope Innocent III to help them take the kingdom. Walter petitioned him to recognize Elvira's claim to her father's throne. Innocent was Frederick's guardian, however, and refused to recognize Elvira as the heir of the entire kingdom. Instead, he recognized her right to the fiefs of Lecce and Taranto, her father's original domain, which had been promised to her mother by Henry. In exchange for this, Elvira and her family had to accept the infant Frederick as their king. Elvira accompanied Walter to the Kingdom of Sicily in 1201. Her husband achieved significant victories against Frederick's forces but was ambushed and killed in 1205. Elvira was pregnant and some time afterwards gave birth to a
posthumous son,
Walter IV, who inherited Brienne. Although it had become accepted in northeastern France that a widow could rule as regent for her minor child, Elvira stayed with her son in southern Italy, effectively leaving the regency to his uncle
John. Elvira's quick remarriage severed her link to the
House of Brienne and John made no effort to support her claims. == Later life ==