On Friday this week her youngest daughter, Princess Eugenie, 28, will marry her longterm boyfriend Jack Brooksbank, 32.
Yesterday the Duchess of York took to her social media to launch another project related to her charity work.
She posted an image to her Instagram account to promote charity Street Child.
She wrote: “As a mother, I have found the stories and scenes of children affected by the earthquake and tsunami in Indonesia utterly heartbreaking.
“They need our help. That’s why we are launching a special appeal – please support it if you can https://www.street-child.co.uk/ @streetchilduk #indonesia #support.”
In July Sarah Ferguson announced that her charity would be merging with another.
She revealed hopes to help 10,000 young people in Janakpur, Nepal.
She wrote on Twitter: “We have solutions and will be able to educate and help 10,000 children of the 25,000 all living in this poverty.
“I am merging my foundation @ChildrenCrisis with @streetchilduk. So onwards and upwards @streetchilduk @TomDannatt #streetchild #childrenincrisis #nepal #janakpur.”
Children in Crisis was set up in 1993 and focuses on the well-being of children in various locations including the Congo and Afghanistan.
Sarah founded the charity and is Life President of the organisation.
Will Sarah Ferguson give a speech at Princess Eugenie’s wedding?
While some plans for the big day have been revealed, the actual itinerary for the reception is currently unknown.
It is traditional for the father-of-the-bride to make a speech, but not the mother.
Princess Eugenie wedding plans will honour her parents on the big day. h
The Archbishop of York, a nod to her parents’ titles, will lead the prayers in the church on the big day.
How much will Princess Eugenie’s wedding cost?
As ninth in line to the throne, Eugenie is believed to feel that she “deserves her moment in the spotlight and a big royal wedding with all the frills,” according to a Daily Mail source.
The princess has planned two days of partying following her wedding on October 12.
Sarah Ferguson: Five facts about the Duchess of York
Sarah is the second daughter of Major Ronald Ferguson and Susan Mary Wright.
Her parents divorced in 1974, with her mother going on to marry polo player Héctor Barrantes in 1975 and moving to Argentina. Sarah stayed in the UK with her father, who remarried in 1976 and went on to have three more children.
Sarah married Prince Andrew on 23 July 1986 at Westminster Abbey in London.
She wore an ivory-silk wedding gown designed by Lindka Cierarch which had a 17 foot train and 20 foot veil. As is tradition, Sarah wore a diamond tiara, and her wedding band was crafted from Welsh gold.
The couple spent their honeymoon abroad the real yacht Britannia off the coast of the Azores Islands.
Sarah and Andrew divorced in 1996 after separating in 1992.
However the couple remain on good terms, even living together in the Royal Lodge from 2008 until Sarah moved to a ski chalet in Switzerland they bought together in 2015.
Sarah has written children’s books for many years, her first being a series about Budgie The Helicopter in the early 90s.
She has also been the US spokeswoman for WeightWatchers after famously battling her weight over the years.
On top of commercial endeavours, the Duchess devotes plenty of time to charity, including Children in Crisis, which she founded in 1993.
Fergie, as she is known to friends, uses both Twitter and Instagram.
She has over 200,000 followers across the platforms, and shares many insights in to her life.
Most of the Royal Family are not on social media, but are represented by Kensington Palace, Buckingham Palace, or Clarence House.
Sarah’s daughters, Beatrice and Eugenie, are the exception, with both joining their mother on social media.