passed to the Count of Poitiers, who became Philip V. He, however, produced no surviving sons with his wife, Countess Joan II of Burgundy (1291–1330), who had been cleared of her charges of adultery; thus, when he died in 1322, the crown passed to his brother, Charles (1294–1328), Count of La Marche, who became Charles IV; the County of Burgundy, brought to the Capetians by the marriage of Joan and Philip V, remained with Joan, and ceased to be part of the royal domains. Charles IV swiftly divorced his adulterous wife, Blanche of Burgundy (–1326) (sister of Countess Joan), who had given him no surviving children, and who had been locked up since 1313; in her place, he married Marie of Luxembourg (1304–1324), a daughter of Emperor Henry VII (–1313). Marie died in 1324, giving birth to a stillborn son. He then remarried to his cousin, Joan of Évreux (1310–1371), who however bore him only daughters; when he died in 1328, his only child was Marie, a daughter by Joan, and the unborn child his wife was pregnant with. Philip of Valois (1293–1350), Count of Anjou and Valois, Charles' cousin, was set up as regent; when the Queen produced a daughter, Blanche, Philip by assent of the great magnates became Philip VI, of the House of Valois, cadet branch of the Capetian Dynasty. Last heirs The last of the direct Capetians were the daughters of Philip IV's three sons, and Philip IV's daughter, Isabella. The wife of Edward II of England (1284–1327), Isabella (–1358) overthrew her husband in favour of her son (Edward III, 1312–1377) ruling as regent with her cohort and lover (Roger Mortimer, 1st Earl of March, 1287–1330). On the death of her brother, Charles IV, in 1328 she claimed to be her father's heiress, and demanded the throne pass to her son (who as a male, an heir to Philip IV, and of adult age, was considered to have a good claim to the throne); however, her claim was refused, eventually providing a cause for the Hundred Years' War. Joan (1312–1349), the daughter of Louis X, succeeded on the death of Charles IV to the throne of Navarre, she now being – questions of paternity aside – the unquestioned heiress. She was the last direct Capetian ruler of that kingdom, being succeeded by her son, Charles II of Navarre (1332–1387); his father, Philip of Évreux (1306–1343) had