French Wars of Religion
In 1584, the Duke of Alençon died.  King Henry III was the only living son of King Henry II (reigned from 1547 to 1559), and the next man in line to become king was the Protestant Henry of Navarre. Many Catholics wanted King Henry III to disown Henry of Navarre and to make someone else the heir to the throne because were scared of a Protestant becoming king, but Henry III refused.