After the dissolution of Quedlinburg Abbey, Sophia Albertina stayed in Sweden permanently.
In 1807, she was deprived of her income from Quedlinburg when it was annexed by the newly created Kingdom of Westfalen.
She wrote to Napoleon and asked him to respect her rights as he had done for Landgravine Louise of Hesse-Darmstadt (1757–1830) and Pauline of Anhalt-Bernburg, but was given no reply.
During the Revolution of 1809, when her nephew Gustaf IV Adolf was deposed, she as well as her brother had refused the King's demand that they evacuate with him, and when the leaders of the coup entered Stockholm, she reportedly greeted Georg Adlersparre with her handkerchief from her balcony.
She then participated in the coronation of her brother as Charles XIII.

She was not close to the elected heir, Charles August of Augustenburg, because he did not like the company of women.
He did, however, offer her the position of abbess at the Danish Vallø stift, after the 1809 government had cancelled her pension and the allowance from Quedlinburg had become irregular, but she declined the offer.
During the reign of her brother Charles XIII (r. 1809–1818), she seldom appeared at court, because he did not like Lolotte Forssberg, whose influence over Sophia Albertina was said to dominate her last years.

Like her brother and sister-in-law, Sophia Albertina was reportedly charmed by the new elected heir, Charles John Bernadotte.
As Bernadotte was very eager to legitimize himself in the eyes of the public, he made every effort to show her affection.
In 1812, when Bernadotte banned all contact with the deposed royal family and all objects which could be a reminder of them, she as well as her sister-in-law decided to stop corresponding with former Queen Fredrica on their own initiative.
However, at her death, it was discovered that she had kept many objects with connection to the deposed King in a locked space in her palace.
After the death of her sister-in-law in 1818 and during the first years of the reign of Charles XIV John, she acted as the first lady of the royal court until 1823, when the estranged spouse of Charles John, Désirée Clary, returned to Sweden.
In 1819, she founded the charitable society Välgörande fruntimmerssällskapet.

During her last years, she spent much time with the Crown Prince couple.
She was well aware of her position as the last member of the former dynasty, and this was also used by Charles XIV John, who was very eager that she should be present at all official occasions, in his attempt to legitimize his own new dynasty: Sophia Albertina was therefore asked to participate in representation frequently during the reign of Charles John.
At the wedding of the Crown Prince in Stockholm in 1823, she placed the bridal crown on the head of Josephine of Leuchtenberg, and in 1826, she was a witness of the birth of the future king Charles XV of Sweden, and had the task to inform the King of the birth and the sex of the newborn.
She participated in the ceremonies of the royal court until her death, and was often referred to as the Vasa Princess.
After the dissolution of Quedlinburg Abbey, Sophia Albertina stayed in Sweden permanently. In 1807, she was deprived of her income from Quedlinburg when it was annexed by the newly created Kingdom of Westfalen. She wrote to Napoleon and asked him to respect her rights as he had done for Landgravine Louise of Hesse-Darmstadt (1757–1830) and Pauline of Anhalt-Bernburg, but was given no reply. During the Revolution of 1809, when her nephew Gustaf IV Adolf was deposed, she as well as her brother had refused the King's demand that they evacuate with him, and when the leaders of the coup entered Stockholm, she reportedly greeted Georg Adlersparre with her handkerchief from her balcony. She then participated in the coronation of her brother as Charles XIII.
She was not close to the elected heir, Charles August of Augustenburg, because he did not like the company of women. He did, however, offer her the position of abbess at the Danish Vallø stift, after the 1809 government had cancelled her pension and the allowance from Quedlinburg had become irregular, but she declined the offer. During the reign of her brother Charles XIII (r. 1809–1818), she seldom appeared at court, because he did not like Lolotte Forssberg, whose influence over Sophia Albertina was said to dominate her last years.
Like her brother and sister-in-law, Sophia Albertina was reportedly charmed by the new elected heir, Charles John Bernadotte. As Bernadotte was very eager to legitimize himself in the eyes of the public, he made every effort to show her affection. In 1812, when Bernadotte banned all contact with the deposed royal family and all objects which could be a reminder of them, she as well as her sister-in-law decided to stop corresponding with former Queen Fredrica on their own initiative. However, at her death, it was discovered that she had kept many objects with connection to the deposed King in a locked space in her palace. After the death of her sister-in-law in 1818 and during the first years of the reign of Charles XIV John, she acted as the first lady of the royal court until 1823, when the estranged spouse of Charles John, Désirée Clary, returned to Sweden. In 1819, she founded the charitable society Välgörande fruntimmerssällskapet.
During her last years, she spent much time with the Crown Prince couple. She was well aware of her position as the last member of the former dynasty, and this was also used by Charles XIV John, who was very eager that she should be present at all official occasions, in his attempt to legitimize his own new dynasty: Sophia Albertina was therefore asked to participate in representation frequently during the reign of Charles John. At the wedding of the Crown Prince in Stockholm in 1823, she placed the bridal crown on the head of Josephine of Leuchtenberg, and in 1826, she was a witness of the birth of the future king Charles XV of Sweden, and had the task to inform the King of the birth and the sex of the newborn. She participated in the ceremonies of the royal court until her death, and was often referred to as the Vasa Princess.
Sophia Albertina, Abbess of Quedlinburg