On the 18th, Hereditary Prince Alois was in Vienna to attend and speak at the New Year's Reception for the Austrian-Liechtenstein Society (ÖLI). This event marks the organization's 10-year anniversary and represents its ongoing commitment to maintaining the strong ties between the two countries.
Princess Maria-Pia, who is Liechtenstein's Ambassador to Austria and the Czech Republic (and previously served as the Ambassador to Belgium and the European Union), also attended the event. Director General Karl Stoss, who is the President of the Austrian-Liechtenstein Society, was awarded the Order of the Principality of Liechtenstein in recognition for his decade of commitment to furthering the society's goals.
A little more information here.