Article 24 stipulates that there is kingship and that this kingship is held by William I of the Netherlands and his lawful successors. Articles 25 and 26 regulate the line of succession to the Dutch throne; since 1983 female successors have equal rights to the throne. Further articles regulate abdication (Article 27); parliamentary approval of royal marriage on penalty of loss of the right to the throne (Art. 28); the exclusion of unfit possible heirs (Art. 29); appointment of a successor if heirs are absent (Art. 30 and 31); the oath and inauguration in the capital of the Netherlands, Amsterdam (Art. 32); the age of royal majority at eighteen (Art. 33); guardianship over a minor King (Art. 34); declaration by Parliament of the King's inability (Art. 35); temporary relinquishment of the exercise of royal authority (Art. 36); regency (Art. 37 and 38); the membership of the Royal House (in practice mainly consisting of members of the House of Orange) (Art. 39); its payment (Art. 40) and the organisation of the royal household by the King (Art. 41).