The coat of arms of Belgium bears a lion or, known as Leo Belgicus, as its charge. This is in accordance with article 193 of the Belgian Constitution: The Belgian nation takes red, yellow and black as colours, and as state coat of arms the Belgian lion with the motto UNITY MAKES STRENGTH. A royal decree of 17 March 1837 determines the achievement to be used in the greater and the lesser version, respectively.

Philippe is King of the Belgians. He is the eldest child of King Albert II and Queen Paola. He succeeded his father upon the former’s abdication for health reasons on 21 July 2013. He married Mathilde d'Udekem d'Acoz in 1999, with whom he has four children. Their eldest child, Princess Elisabeth, is first in the line of succession.