Namesakes
Louis-Philippe of Belgium
(middle name Filips) (m) 1833-1834 
Other Royalty 1833-1834 Belgium (prince)
Leopold II
(middle name Filips) (m) 1835-1909
Other Royalty 1865-1909 Belgium (king)
Philippe of Belgium
(a.k.a. Filips) (m) 1837-1905
Other Royalty 1837-1905 Belgium (prince)
Baudouin of Belgium
(middle name Filips) (m) 1869-1891
Other Royalty 1869-1891 Belgium (prince)
Leopold III
(middle name Filips) (m) 1901-1983
Other Royalty 1934-1951 Belgium (king)
Philippe
(a.k.a. Filips) (m) 1960-
Other Royalty 2013- Belgium (king)