Since 1866, in Belgium, one celebrates the Fête of the King the November 15th, the day of the Saint Léopold (name of the first two kings) in the Germanic liturgical calendar, and of the Saint Albert in the general calendar. Baudouin I {{er}} decided in 1951 not to change this date.

Previously, the ceremony consisted of a Te Deum with the Cathédrale Saint-Michel-and-Gudule. In a preoccupation with a laicization, the festival in religious matter doubles of a meeting of homage to the palate of the Nation to which the sovereigns do not assist.

During the Regency of the prince Charles (1944-1950), this festival was called Fête of the Dynasty . The expression perdure nowadays but is however erroneous, as a circular letter of the Minister of Interior Department of 1953 underlines it.

This date was also selected like feastday of the German-speaking Communauté.