On 14 February 1820, Charles's younger son, the Duke of Berry, was assassinated at the Paris Opera. This loss not only plunged the family into grief but also put the succession in jeopardy, as Charles's elder son, the Duke of Angouleme, was childless. The lack of male heirs in the Bourbon main line raised the prospect of the throne passing to the Duke of Orléans and his heirs, which horrified the more conservative ultras. Parliament debated the abolition of the Salic law, which excluded females from the succession and was long held inviolable. However, the Duke of Berry's widow, Caroline of Naples and Sicily, was found to be pregnant and on 29 September 1820 gave birth to a son, Henry, Duke of Bordeaux. His birth was hailed as "God-given", and the people of France purchased for him the Château de Chambord in celebration of his birth. As a result, his granduncle, Louis XVIII, added the title Count of Chambord, hence Henry, Count of Chambord, the name by which he is usually known.