Willem-Alexander of Orange was sworn in Tuesday as the new king of the Netherlands at the Nieuwe Kerk in Amsterdam during a joint session of the Dutch Parliament.

"I swear that I will always defend and protect with all my strength the independence and integrity of the Kingdom's territory," the 46-year-old Willem-Alexander told Parliament and the country's other officials.

Prime Minister Mark Rutte and a host of high-level officials and foreign dignitaries attending the monarch's swearing-in ceremony.

Members of Parliament, the Council of Ministers, the Council of State and the governors and prime ministers of Aruba, Curacao and Sint Maarten all swore to protect and uphold the constitution before the new king took his oath.

The monarch has few powers under Dutch law and holds a mostly ceremonial post. EFE