As with his brothers before him, King Charles IV died without a male heir, thus ending the direct line of the
House of Capet. Twelve years earlier, a rule against succession by females, arguably derived from the
Salic law, had been recognized as controlling succession to the French throne. Application of this rule barred Charles's 1-year-old daughter
Marie from succeeding as the monarch. Jeanne was also pregnant at the time of his death. Since it was possible that she would give birth to a son, a
regency was set up under
Philip of Valois, the closest
agnate. After two months, Queen Jeanne gave birth to Blanche. The regent thus became king and in May was consecrated and crowned. At this time, a further rule of succession, again arguably based on the Salic law, was recognized as forbidding not only inheritance by a woman, but also inheritance through a female line. ==Marriage==