Anna Woynarowska was the daughter of the Cossack colonel Ivan Mirovich (d. 1706) and a member of the Mirowicz family of the Ukraine.
When Andrei Stanislaus Woynarowski was taken prisoner by the Russians in 1716 and sent to Siberia, where he eventually died in captivity, he authorized Anna Woynarowska (then residing in Breslau with their children) to act as his proxy and demand payment of the debt from the Swedish king.
Charles XII acknowledged the debt note as legitimate but did not pay it, and after his death in 1718, Anna Woynarowska traveled to the Swedish capital of Stockholm to demand payment from the Riksdag of the Estates.
Woynarowska was but one of a very large crowd of the creditors of Charles XII demanding payment for financing the Great Northern War - it is mentioned that numerous of them arrived as late as 1731 and that their demands put a great pressure on state finances for years after the end of the war.
A debt of half a million was impossible for the Swedish crown to pay in the financial state after the war, and Anna Woynarowska was provided with a state allowance until the debt could be paid in full.