Overview

• Henri stepped down after nearly 25 years, and Guillaume was sworn in by parliament following the palace abdication to become the seventh sovereign of the House of Luxembourg‑Nassau.
• A three‑day program features a balcony appearance, a nationwide tour on Saturday with public meet‑and‑greets, a concert with a drone show in Luxembourg City, and a cathedral service on Sunday.
• European royalty and leaders are attending, including the Dutch and Belgian royal families, French President Emmanuel Macron, German President Frank‑Walter Steinmeier, and EU leaders Roberta Metsola and António Costa.
• Guillaume’s five‑year‑old son, Prince Charles, is now heir apparent; under the constitution a ruler must be 18, and Prince Félix would serve as regent if succession occurred before Charles reaches adulthood.
• The handover follows Guillaume’s year as Lieutenant‑Représentant and comes after a 2023 constitutional revision that strengthened parliament and limited the sovereign’s political scope in the world’s only grand duchy.