King Philippe of Belgium is the seventh and current King of the Belgians, having ascended to the throne on 21 July 2013. He is the eldest child of King Albert II and Queen Paola, and is the first King of the Belgians since his father's abdication in 2013.
From Wikipedia
Philippe Léopold Louis Marie is King of the Belgians, and 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.