The formal declaration of the crown princess or prince, otherwise known as the coronation of the Alderaanian heir, was a ceremony where the heir to the Alderaanian throne was officially proclaimed. This ceremony occurred following the heir's Day of Demand, specifically after they had successfully completed their three trials: the challenges of the Body, Mind, and Heart, thereby demonstrating their worthiness to inherit the throne. Similar to the Day of Demand, the Rhindon Sword was carried by the heir throughout the coronation. The ceremony culminated with the monarch crowning the heir using the Heir's Crown.
Leia Organa's coronation ceremony, which took place in 3 BBY, saw the attendance of numerous individuals. Among them was Mon Mothma, the Chandrilan senator, alongside many of her associates from the Apprentice Legislature, including Amilyn Holdo from Gatalenta and Chassellon Stevis hailing from Coruscant.