Philippe or Filip (Dutch: Filip Leopold Lodewijk Maria [ˈfilɪp ˈleːjoːpɔlt ˈloːdəʋɛik maːˈrijaː]; French: Philippe Léopold Louis Marie [filip leɔpɔld lwi maʁi]; born 15 April 1960) is King of the Belgians. He is the eldest child of King Albert II and Queen Paola. He succeeded his father upon the latter'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.