Namesakes
Austrian Dukes and Emperors:
1 archduke
Archduke Karl II (a.k.a. Wenzel) 1711-1740 
Bohemian Kings:
2 kings
King Václav IV (a.k.a. Wenzel) 1378-1419
King Karel II (a.k.a. Wenzel) 1711-1740
German Kings and Holy Roman Emperors:
1 king, 1 king-emperor
King Wenzel 1376-1400
King-Emperor Karl VI (a.k.a. Wenzel) 1711-1740
Hungarian Kings and Queens:
1 king
King Károly III (a.k.a. Wenzel) 1711-1740
Other Royalty:
3 princes
Joseph Wenzel I, Prince of Liechtenstein 1712-1718; 1732-1745; 1748-1772 Liechtenstein
Wenzel of Liechtenstein 1962-1991 Liechtenstein
Joseph Wenzel of Liechtenstein 1995- Liechtenstein