Princess Irene of Greece and Denmark, sister of Queen Sofía of Spain and the late ex-King Constantine of the Hellenes, died this morning at Zarzuela Palace in Madrid. She was 83. The news article states she was 84, however she would have been 84 on 11 May.

https://greekreporter.com/2026/01/15/ex-princess-irene-greece-critical-condition/