 The family 's first home in exile was <unk> Castle in Rorschach , Switzerland , a property owned by the Bourbon @-@ <unk> . However , the Swiss authorities , worried about the implication of the Habsburgs living near the Austrian border , compelled them to move to the western part of the country . The next month , therefore , found them moving to Villa Prangins , near Lake Geneva , where they resumed a quiet family life . This abruptly ended in March 1920 when , after a period of instability in Hungary , Miklós Horthy was elected regent . Charles was still technically King ( as Charles IV ) but Horthy sent an emissary to Prangins advising him not to go to Hungary until the situation had calmed . After the Trianon Treaty Horthy 's ambition soon grew . Charles became concerned and requested the help of Colonel Strutt to get him into Hungary . Charles twice attempted to regain control , once in March 1921 and again in October 1921 . Both attempts failed , despite Zita 's staunch support ( she insisted on travelling with him on the final dramatic train journey to Budapest ) . 
