TREASON!!!!
She did not die of treason, I believe she just died from natural causes away from court life. She remarried and outlived her immediate family.
Anne was beheaded on false claims saying that she cheated on her husband King Henry VIII. Mary is not well-known so her death is not certain but like most people back than she probably die of...
After Anne Boleyn married Henry VIII Mary married William Stafford and had at least one child with him. They lived in the country with her other children and she died several years later.