The Duke's exit from the last vestiges of royal life has not only altered his path - it's sending ripples through his family too.
His ex-wife has now surrendered her ducal status and will simply be known as Sarah Ferguson.
For Sarah, sixty-six, the change will be the most apparent.
Throughout this period, she has maintained the honorary royal post-marital designation Sarah, Duchess of York. Currently, she returns to her maiden name of Ferguson.
"She has lost a bit of cachet over this," noted one monarchy expert. "She certainly does use the title – including her Twitter bio is @SarahTheDuchess."
But the loss of her title may affect her much less than the controversy she's dealing with independently about her own links with the convicted financier.
Recently, several charities dropped her as ambassador after an email from 2011 revealed that she called Epstein her "supreme friend" and appeared to express regret for her negative comments of him.
Away from her charitable activities, Ferguson also has various business ventures.
And these ventures, are more probable to be affected by the Epstein controversy than any change in title, notes one royal commentator.
But Ferguson has been a remarkable endure in royal circles. She's kept bouncing back.
"She's the ultimate survivor and master of reinvention," commented one royal author.
For the couple's offspring, Beatrice, thirty-seven, and Eugenie, 35, there's no formal change.
They will still be known as royal princesses, which they have been granted since birth.
Additionally there is no modification to the royal succession order.
The prince stays eighth position to the crown, succeeded by his daughters Beatrice and Eugenie, in ninth and twelfth position respectively.
But in practice their standing are "distant" and will likely become much further down as years pass.
The princesses are also currently non-official royals, and while they occasionally take on roles – The younger princess was recently announced as a mentor for the King's Foundation program – commentators also say they "don't envision a scenario" in which they would advance into royal duties.
"Regarding Beatrice and Eugenie go, I think there's an understanding of the fact that this controversy doesn't involve them, and it's not fair for it to impact them personally in the separate paths they are carving out for themselves," explains one royal commentator.
"Their daughters are particularly unlucky affected parties, they've had to endure quietly and have been composed in their reserve," adds another monarchy writer.
In the end, there seems to be little doubt that the person who will be most impacted by these developments will be the Duke himself.
For someone who consistently enjoyed the royal privileges, the ceremony and the ceremony, the relinquishment of his honors is profoundly embarrassing.
So to not have these, on a individual basis, will really matter.
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