On 2 October 2023 President Síofra O’Leary delivered the keynote speech at the official ceremony held at the Constitutional Court of Austria, in Vienna, on the occasion of Constitution Day, in the presence of Alexander Van der Bellen, Federal President of the Republic of Austria. President O’Leary was accompanied by Gabriele Kucsko-Stadlmayer, Section President and Judge elected in respect of Austria. On the side of the event, President O’Leary held bilateral meetings with Karoline Edtstadler, Federal Minister for the European Union and Constitution, and Alma Zadić, Federal Minister of Justice.