Namesakes
Belgian Prime Ministers:
1 prime minister
Aloys Van de Vyvere 1925 
Other Royalty:
4 princes
Aloys I, Prince of Liechtenstein 1781-1805 Liechtenstein
Johann I Joseph, Prince of Liechtenstein (a.k.a. Aloys) 1805-1836 Liechtenstein
Aloys II, Prince of Liechtenstein 1836-1858 Liechtenstein
Franz Joseph II, Prince of Liechtenstein (a.k.a. Aloys) 1938-1989 Liechtenstein