Queen Mary of Denmark shared some sad news on 12 April, taking to social media to announce the death of her father. Translated to English, a message shared on King Frederik and Queen Mary’s Instagram account read: “It is with great sorrow that Her Majesty, The Queen, announces that her father, Professor John Dalgleish Donaldson, has died in Hobart, Tasmania. He was 84 years.”
Captioning a black and white photo of Professor Donaldson, which was captured by King Frederik’s wife on 23 March 2026, was a statement from Mary: “My heart is heavy, and my thoughts are grey. My beloved father has passed away. But I know that when the grief settles, the memories will brighten my day, and what will remain strongest is love and gratitude for everything he gave me and taught me.”
The post also revealed that Professor John Donaldson’s health has been declining over the past few years and that the Queen last visited her father at the end of March, where they shared precious time together.
John Donaldson was a Professor of Applied Mathematics, born in Scotland on September 5, 1941. The family will hold a private memorial service at a later date.
More to follow.
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