Riksdag

“ Sweden has four fundamental laws: the Instrument of Government, the Act of Succession, the Freedom of the Press Act and the Fundamental Law on Freedom of Expression. These establish among other things how parliament and government are to be appointed and how they shall function. The fundamental laws also include protection for citizens’ rights and freedoms.
The organisation and working procedures of the Riksdag (the Swedish Parliament) are regulated in more detail in the Riksdag Act, which occupies an intermediate position between fundamental law and ordinary law. ”

“ Act of Succession
according to which the male heirs begotten by His Noble-Born Highness, the elected Crown Prince of Sweden, His Royal Highness Prince JOHAN BAPTIST JULIUS of Ponte-Corvo, shall have the right to the Royal throne of Sweden and to accede to the government of Sweden; adopted and confirmed by the King and the Estates of the Realm at the extraordinary session of the Riksdag in Örebro on September 26, 1810. ”

“ The heir to the throne may not undertake travel abroad without the knowledge and consent of The King.
Art. 8. A prince or princess of the Swedish Royal House may not become the sovereign ruler of a foreign state whether by election, succession, or marriage without the consent of The King and the Riksdag. Should this occur, neither he nor she nor their descendants shall be entitled to succeed to the throne of Sweden. ”