His Royal Highness Crown Prince Castillo was appointed Governor General of Westdom on 9 September 2025. As the Monarch's Permanent Representative in the Republic of Westdom, he serves as a vital constitutional link between the Crown and the institutions of government, carrying out ceremonial, constitutional, and representative duties on behalf of the Sovereign.

In his role as Governor General, Crown Prince Castillo supports the continuity of constitutional governance, presides over official state ceremonies, and represents the Crown at national and international events. He works closely with the President of the Republic, the Council of Ministers, and the Crown Council to uphold the constitutional traditions, stability, and unity of Westdom.