Hans-Adam II (Johannes Adam Ferdinand Alois Josef Maria Marco d'Aviano Pius; born 14 February 1945) is the reigning Prince of Liechtenstein. He is the son of Franz Joseph II, Prince (Fürst) of Liechtenstein (1906–1989) and his wife Countess Georgina von Wilczek (1921–1989). He also bears the titles Duke of Troppau and Jägerndorf, and Count Rietberg.