Austin died of a heart attack on 2 January 2017 in London. His death is the first royalty-related death to be registered in 2017 so far.
The press release in full:
His Royal Highness Crown Prince Alexander is very sad to announce that Her Royal Highness Princess Lavinia’s (first cousin of HRH Crown Prince Alexander) beloved husband Austin Prichard-Levy died suddenly in London Monday 2nd January 2017 at home of a heart attack.
Crown Prince Alexander and family extend their deepest sympathy and condolences to the family of Princess Lavinia.
Austin Prichard-Levy was born 20 January, 1953 in Roma, Queensland, Australia. He married Princess Lavinia in London 4 October 1998 and they had a son Luca Orlando Christopher born in London 14 February, 2000 whose Godmother is Crown Princess Katherine. He was also loving stepfather to Nadya-Marie and Andrej Sidiropulous.
Princess Lavinia is the daughter of the late Prince Andrej of Yugoslavia (brother of King Peter II of Yugoslavia) and the late Princess Kira of Leiningen.