According to a German documentary, Prince Rainer contacted Philip early in 2021, asking him to write a forward to his book.
Once the Duke fell ill, Rainer no longer gave any thought to his request and forgot about it.
However, one day before Philip’s death Rainer received a letter containing the forward.
The Duke of Edinburgh’s Private Secretary assured him that every word had been written personally by Philip.
Now a Twitter user with the handle @PackhamGown has posted a screenshot of the letter.
An SS colonel, he was also chief of Hermann Goering’s secret intelligence service, which spied on opponents of the Nazi regime.
By the time of the outbreak of World War 2, Sophie had distanced herself from the Nazi party and it followers, dedicating her time to caring for the children of her Hesse relations.
She would marry Prince George William of Hanover in 1946, after the death of her first husband in a plane crash in 1943.
On her death in 2001, Prince Philip said: “She did so much kindness in her life that she stored up many gifts in Heaven and I hope she’s enjoying them now.”